WoRMS source details

Maciolek, Nancy J. (2020). Anguillosyllis (Annelida: Syllidae) from multiple deep-water locations in the northern and southern hemispheres. Zootaxa. 4793(1): 1-73.
381559
10.11646/zootaxa.4793.1.1 [view]
urn:lsid:zoobank.org:pub:550F8461-03F6-4301-8791-605775D77467 [view]
Maciolek, Nancy J.
2020
<em>Anguillosyllis</em> (Annelida: Syllidae) from multiple deep-water locations in the northern and southern hemispheres
Zootaxa
4793(1): 1-73
Publication
World Polychaeta Database (WPolyDb). Open access at Zootaxa
Available for editors  PDF available [request]
Numerous specimens belonging to the syllid genus Anguillosyllis Day were collected during several deep-sea studies conducted between 1970 and 2011 in depths ranging from 180 to nearly 5000 m. These quantitative studies demonstrated that members of this genus are not as uncommon as once thought but can be among the 10 most common infaunal species at some deep-sea locations. Study areas included Georges Bank (New England), the North, Mid, and South Atlantic Continental Slope and Rise (east coast of North America), the Gulf of Mexico (off Louisiana), off San Francisco, California, the Clarion-Clipperton Fracture Zone (Pacific Ocean), the South China Sea (off Brunei), the abyssal plain in the South Atlantic Ocean, and Antarctica (Scotia Sea, Weddell Sea). Sixteen new species are described, bringing the total number of described Anguillosyllis species to 20; one additional species that cannot be fully characterized is also noted. The new species include eight with palps that are entirely or partially free (Anguillosyllis aciculata n. sp., A. acsara, n. sp., A. carolina n. sp., A. denaria n. sp., A. hadra, n. sp., A. hampsoni n. sp., A. taleola n. sp., and A. truebloodi n. sp.) and eight species with completely fused palps (A. andeepia n. sp., A. blakei n. sp., A. bruneiensis n. sp., A. elegantissima n. sp., A. enneapoda n. sp., A. hessleri n. sp., A. inornata n. sp., and A. sepula n. sp.). Type specimens of A. palpata (Hartman) from off Cape Horn and A. pupa (Hartman) from off New England were examined; A. capensis Day from South Africa and A. lanai Barroso, Paiva, Nogueira & Fukuda from Brazil are discussed. All adult Anguillosyllis have a fixed number of setigers, either 8, 9, 10, or 11, with 11 setigers being the most common. Species differ in the number of setigers, degree of fusion of the palps, degree of development of parapodial lobes, structure and number of internal and external glands, number of setae in anterior setigers, shape and size of proventricle, and annulation of the dorsum. All species for which the anal cirri had not been lost were found to have four, including two long, thin, ventromedial ones and two shorter, usually oval, lateral ones. Reproduction is poorly known in the genus; the present study shows eggs are found in the posterior (post-proventricle) setigers of most species and enter the parapodia from the coelom of several specimens; egg diameters generally ranged from 50–85 µm with A. sepula n. sp. having eggs up to 120 µm, the largest reported for the genus.
Systematics, Taxonomy
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Date
action
by
2020-06-14 23:41:57Z
created
2020-06-16 01:45:11Z
changed

Clarion Clipperton Zone for Anguillosyllis palpata (Hartman, 1967) 
Holotype MCZ 147935, geounit South China Sea, identified as Anguillosyllis aciculata Maciolek, 2020
Holotype MCZ 147936, geounit South China Sea, identified as Anguillosyllis bruneiensis Maciolek, 2020
Holotype MCZ 147937, geounit South China Sea, identified as Anguillosyllis elegantissima Maciolek, 2020
Holotype USNM 1480212, geounit North West Atlantic, identified as Anguillosyllis acsara Maciolek, 2020
Holotype USNM 1480214, geounit North West Atlantic, identified as Anguillosyllis carolina Maciolek, 2020
Holotype USNM 1480267, geounit Georges Bank, identified as Anguillosyllis hampsoni Maciolek, 2020
Holotype USNM 1480273, geounit Clarion Clipperton Zone, identified as Anguillosyllis truebloodi Maciolek, 2020
Holotype MCZ 148506, geounit South China Sea, identified as Anguillosyllis enneapoda Maciolek, 2020
Holotype MCZ 148522, geounit South China Sea, identified as Anguillosyllis hadra Maciolek, 2020
Holotype MCZ 150582, geounit South China Sea, identified as Anguillosyllis sepula Maciolek, 2020
Holotype MCZ 150597, geounit South China Sea, identified as Anguillosyllis taleola Maciolek, 2020
Holotype MCZ 151152, geounit South China Sea, identified as Anguillosyllis denaria Maciolek, 2020
Holotype SMF 24863, geounit South Atlantic Deep, identified as Anguillosyllis andeepia Maciolek, 2020
Holotype LACM AHF Poly 10169, geounit Clarion Clipperton Zone, identified as Anguillosyllis hessleri Maciolek, 2020
Holotype LACM AHF Poly 10443, geounit Gulf of the Farallones, identified as Anguillosyllis blakei Maciolek, 2020
Holotype LACM AHF Poly 10453, geounit Gulf of the Farallones, identified as Anguillosyllis inornata Maciolek, 2020
















 Depth range

1505-1996 m. [details]

 Depth range

995–1820 m. [details]

 Depth range

720-2999 m. [details]

 Depth range

1171-1967 m. [details]

 Depth range

1050–2162 m. [details]

 Depth range

1242–2117 m. [details]

 Depth range

1015-1329 m. [details]

 Depth range

142-151 m. [details]

 Depth range

4480-4518 m. [details]

 Depth range

2005–4119 m. [details]

 Depth range

1234–1487 m. [details]

 Depth range

1294–1958 m. [details]

 Depth range

4516–4861 m. [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

Western North Atlantic: off North Carolina (USA). [details]

 Distribution

South Atlantic Ocean: abyssal plain south of Meteor Rise. [details]

 Distribution

Pacific Ocean: California continental slope (USA). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

Western North Atlantic: off North Carolina (USA). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

Western North Atlantic: Georges Bank (off Massachusetts, USA). [details]

 Distribution

Abyssal Pacific Ocean: Clarion-Clipperton Fracture Zone. [details]

 Distribution

Pacific Ocean: continental shelf off San Francisco (California, USA). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

South China Sea: off Brunei (Island of Borneo). [details]

 Distribution

Abyssal Pacific Ocean: Clarion-Clipperton Fracture Zone. [details]

 Etymology

"From Latin acus meaning needle or small pin, the root of the term aciculum, in reference to the large emergent ... [details]

 Etymology

"The species name is based on ACSAR, the acronym for the Atlantic Continental Slope and Rise program, during which ... [details]

 Etymology

"This species name is based on ANDEEP, the acronym for the expedition to study deep-sea biodiversity in Antarctica" ... [details]

 Etymology

"This species is named in honor of Dr. James A. Blake, who collected the specimens and recognized them as an ... [details]

 Etymology

"The species epithet reflects the collection location off Brunei in the South China Sea" (Maciolek, 2020: 53). [details]

 Etymology

"The species name carolina refers to the collection of this species at stations off the coast of North Carolina, ... [details]

 Etymology

"From the Latin adjective denaria, meaning “containing ten each;” in reference to the ten setigers of this ... [details]

 Etymology

"The species name elegantissima is derived from the Latin word elegans, and refers to the graceful, ... [details]

 Etymology

"From the Greek ennea, meaning nine and podos, meaning foot; in reference to the nine setigers of this species" ... [details]

 Etymology

"The specific epithet is an adjective taken from the Greek hadros, meaning well-developed or bulky; it refers to ... [details]

 Etymology

"This species is named for Woods Hole Oceanographic Institute scientist Mr. George Hampson (1938–2015), the ... [details]

 Etymology

"This species is named for Dr. Robert R. Hessler, Scripps Institute of Oceanography, Co-Chief Scientist on the ... [details]

 Etymology

"From the Latin inornatus, meaning plain or unadorned, in reference to the lack of anterior or posterior lobes on ... [details]

 Etymology

"From the Malay word sepuluh, meaning ten; referring to the ten setigers of this species" (Maciolek, 2020: 69). [details]

 Etymology

"The specific name, taleola, is the diminutive of the Latin talea, for slender staff or rod; it refers to the ... [details]

 Etymology

"This species is named for Dr. Dwight D. Trueblood, who collected the majority of the specimens and made them ... [details]

 Habitat

Type of sediment not stated, at abyssal depths (2162 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths on the continental slope and rise (1505-1996 m). [details]

 Habitat

Type of sediment not stated, at abyssal depths (4551 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (995–1820 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1234 m). [details]

 Habitat

Type of sediment not stated, at bathyal and abyssal depths (720-2999 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1171-1967 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1050–2162 m). [details]

 Habitat

Type of sediment not stated, at bathyal and abyssal depths (1242–2117 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1015-1329 m).  [details]

 Habitat

Type of sediment not stated, at shelf depths (142-151 m). [details]

 Habitat

Type of sediment not stated, at abyssal dephs (4480-4518 m). [details]

 Habitat

Type of sediment not stated, at abyssal depths (2005–4119 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1234–1487 m). [details]

 Habitat

Type of sediment not stated, at bathyal depths (1294–1958 m). [details]

 Habitat

Type of sediment not stated, at abyssal dephs (4516–4861 m). [details]

 Reproduction

Holotype with setigers 6–10 filled with possible gonadal products but individual eggs not detectable. [details]

 Reproduction

Oocytes in coelom of setigers 5/ 6–8, measuring 65–80 μm greatest diameter; some oocytes entering or within ... [details]

 Reproduction

Reproductive specimens with oocytes in coelom of setigers 6–9, oocytes measuring 50–115 μm greatest diameter ... [details]

 Reproduction

Oocytes in coelom of setigers 5–7, measuring 50–75 μm in greatest diameter; some oocytes entering or within ... [details]

 Reproduction

Oocytes in coelom of setigers 6–9, measuring 60–85 μm greatest diameter; large oocytes entering parapodia. [details]

 Reproduction

Oocytes in coelom of setigers 6–9, measuring 50–85 μm greatest diameter (ave.= 59.8 ± 8.9 μm, n=20); large ... [details]

 Reproduction

Several specimens with eggs in coelom of setigers 6–10; specimens appearing bulky, bloated posteriorly; eggs ... [details]

 Reproduction

Reproductive specimens with oocytes in setigers 6–9, measuring 50–60 μm in greatest diameter, some squeezing ... [details]

 Reproduction

Eggs measuring 50–80 μm were present in several specimens in the coelom after setiger 6 or 7. Specimens with ... [details]

 Reproduction

Reproductive specimens collected in July and September/October; eggs measuring 70–85 μm greatest diameter, about ... [details]

 Reproduction

Reproductive specimens with oocytes in coelom of setigers 6–10, oocytes crowded against or entering parapodia; ... [details]

 Reproduction

Several specimens observed with eggs moving into the parapodia after setiger 5. [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.6153°, 113.6853°). [details]

 Type locality

Off North Carolina, USA, Western North Atlantic continental slope and rise (34.2418°, -75.6722°). [details]

 Type locality

South of Meteor Rise, abyssal plain of South Atlantic Ocean (-47.6675°, 04.2473°). [details]

 Type locality

South of the Pioneer Canyon, Gulf of the Farallones, California continental slope, USA, Pacific Ocean (37.1877°, ... [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.8008°, 114.3028°). [details]

 Type locality

Off North Carolina, USA, Western North Atlantic (32.9193°, -75.8375°). [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.8422°, 114.2631°). [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.7169°, 114.1019°). [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.4475°, 113.7783°). [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.8008°, 114.3028°). [details]

 Type locality

Georges Bank, off Massachusetts, USA, Western North Atlantic (gazetteer estimate 40.65°, -67.77°). [details]

 Type locality

Clarion-Clipperton Fracture Zone, abyssal Pacific Ocean (14.7075°, -125.4045°). [details]

 Type locality

San Francisco Deep Ocean Disposal Site (SF-DODS), west of the Farallon Islands, California continental slope, USA, ... [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.8161°, 114.2883°). [details]

 Type locality

Off Brunei, Island of Borneo, South China Sea (5.3881°, 113.6211°). [details]

 Type locality

Clarion-Clipperton Fracture Zone, abyssal Pacific Ocean (12.9298°, -128.5973°). [details]