Caulleriella rodmani, Blake, 2021

Blake, James A., 2021, New species and records of Caulleriella (Annelida, Cirratulidae) from shelf and slope depths of the Western North Atlantic Ocean, Zootaxa 4990 (2), pp. 253-279 : 264-268

publication ID

https://doi.org/ 10.11646/zootaxa.4990.2.3

publication LSID

lsid:zoobank.org:pub:ED8988CB-357D-4AD2-9810-CBD1C131CC8A

DOI

https://doi.org/10.5281/zenodo.5091870

persistent identifier

https://treatment.plazi.org/id/C4AA5F36-4C99-4055-81C8-96D30D0316AA

taxon LSID

lsid:zoobank.org:act:C4AA5F36-4C99-4055-81C8-96D30D0316AA

treatment provided by

Plazi

scientific name

Caulleriella rodmani
status

sp. nov.

Caulleriella rodmani View in CoL new species

Figures 6–7 View FIGURE 6 View FIGURE 7

urn:lsid:zoobank.org:act:C4AA5F36-4C99-4055-81C8-96D30D0316AA

Caulleriella sp. 1 : Blake et al. 1987: C-2; Maciolek et al.1987a: D-2; Hilbig 1994: 194.

Material Examined. (70 specimens) Off New Jersey and Delaware, U.S. Mid-Atlantic ACSAR program, coll. Rosemarie Petrecca, Chief Scientist. Sta. 5: Cruise Mid-4, Rep. 2, 16 May 1985, 38°50.48ʹN, 72°33.19ʹW, 2080 m, holotype ( USNM 1642603 About USNM ) GoogleMaps ; Rep. 1, 16 May 1985, 38°50.46ʹN, 72°33.23ʹW, 2080 m, 2 paratypes ( USNM 1642604 About USNM ) GoogleMaps ; Cruise Mid-1, Rep. 3, May 1984, 38°36.88ʹN, 72°51.34ʹW, 2055 m, paratype ( USNM 1642605 About USNM ) GoogleMaps ; Cruise Mid-3, Rep. 1, 5 Dec 1984, 38°50.42ʹN, 72°, 33.04ʹW, 2085 m, (1, USNM 1642606 About USNM ) GoogleMaps ; Cruise Mid-5, Rep. 1, 3 Aug 1985, 38°50.44ʹN, 72°33.18ʹW, 2077, 2 paratypes ( USNM 1642607 About USNM ) GoogleMaps . Sta. 1: Cruise Mid-2, Rep. 3, 03 Aug 1984, 38°35.99ʹN, 72°52.87ʹW, 2194 m (1, USNM 1642608 About USNM ) GoogleMaps ; Cruise Mid-4, Rep. 3, 17 May 1985, 38°35.88ʹN, 72°53.13ʹW, 2195 m, paratype ( USNM 1642609 About USNM ) GoogleMaps . Sta. 2: Cruise Mid-2, Rep. 1, 03 Aug 1984, 38°35.77ʹN, 72°53.58ʹW, 2019 m (1, USNM 1642610 About USNM ) GoogleMaps ; Cruise Mid-3, Rep. 3, 02 Dec 1984, 38°35.68ʹN, 72°53.69ʹW, 2015 m (3, USNM 1642611 About USNM ) GoogleMaps . Sta. 4: Cruise Mid-3, Rep. 3, 05 Dec 1983, 38°44.40ʹN, 72°41.08ʹW, 2105 m, 2 paratypes ( USNM 1642612 About USNM ) GoogleMaps ; Cruise Mid-4, Rep. 2, 16 May 1985, 38°44.45ʹN, 72°41.26ʹW, 2091 m, 2 paratypes ( USNM 1642613 About USNM ) GoogleMaps ; Cruise Mid-5, Rep. 1, 3 Aug 1985, 38°44.43ʹN, 72°41.24ʹW, 2095 m, paratype ( USNM 1642614 About USNM ) GoogleMaps ; Cruise Mid-6, Rep. 3, 11 Nov. 1985, 38°44.40ʹN, 72°41.26ʹW, 2105 m (1, USNM 1642615 About USNM ) GoogleMaps . Sta. 6: Cruise Mid-3, Rep. 3, 28 Nov 1984, 39°05.65ʹN, 72°03.08ʹW, 2085 m, 2 paratypes ( USNM 1642616 About USNM ) GoogleMaps . Sta. 7: Cruise Mid-1, Rep. 3, 06 May 1984, 38°27.30ʹN, 73°03.43ʹW. 2100 m, (1, USNM 1642617 About USNM ) GoogleMaps ; Cruise Mid-5, Rep. 2, 07 Aug 1985, 38°27.32ʹN, 73°03.54ʹW, 2095 m, paratype ( USNM 1642618 About USNM ) GoogleMaps ; Rep. 3, 07 Aug 1985, 38°27.31ʹN, 73°03.54ʹW, 2088 m, (2, USNM 1642619 About USNM ) GoogleMaps ; Cruise Mid-6, Rep. 1, 14 Nov 1985, 38°27.29ʹN, 73°03.58ʹW, 2096 m, paratype ( USNM 1642620 About USNM ) GoogleMaps . Sta. 8: Cruise Mid- 1, Rep. 1, 06 May 1984, 38°27.36ʹN, 73°05.09ʹW, 2148 m, paratype ( USNM 1642621 About USNM ) GoogleMaps ; Rep. 3, 06 May 1984, 38°27.36ʹN, 73°04.81ʹW, 2150 m, paratype ( USNM 1642622 About USNM ) GoogleMaps ; Cruise Mid-2, Rep. 1, 05 Aug 1984, 38°27.21ʹN, 73°04.79ʹW, 2159 m (1, USNM 1642623 About USNM ) GoogleMaps ; Cruise Mid-3, Rep. 3, 01 Dec 1984, 38°27.15ʹN, 73°04.79ʹW, 2155 m, 2 paratypes ( USNM 1642624 About USNM ) GoogleMaps . Sta. 9: Cruise Mid-3, Rep. 1, 30 Nov. 1984, 38°17.20ʹN, 73°14.38ʹW, 2110 m (1, USNM 1642625 About USNM ) GoogleMaps ; Cruise Mid-4, Rep. 2, 18 May 1985, 38°17.20ʹN, 73°14.65ʹW, 2105 m, paratype ( USNM 1642626 About USNM ) GoogleMaps . Cruise Mid-5, Rep. 1, 08 Aug 1984, 38°17.24ʹN, 73°14.63ʹW, 2100 m, 2 paratypes ( USNM 1642627 About USNM ) GoogleMaps ; Cruise Mid-6, Rep. 1, 16 Nov 1985, 38°17.24ʹN, 73°14.92ʹ, 2108 m, (1, USNM 1642628 About USNM ) . Sta. 10: Cruise Mid-4, Rep. 2, 19 May 1985, 37°51.75ʹN, 73°19.97ʹW, 2095 m, paratype ( USNM 1642629 About USNM ) GoogleMaps . Sta. 11, Cruise Mid-5, Rep. 3, 06 Aug 1985, 38°40.14ʹN, 72°56.46ʹW, 1502 m, (1, USNM 1642630 About USNM ) GoogleMaps . Sta. 12: Cruise Mid-1, Rep. 1, 8 May 1984, 38°29.34ʹN, 72°42.23ʹW, 2501 m, paratype ( USNM 1642631 About USNM ) GoogleMaps ; Rep. 2, 8 May 1984, 38°29.33ʹN, 72°42.19ʹW, 2500 m, paratype ( USNM 1642632 About USNM ) GoogleMaps ; Cruise Mid-6, Rep. 3, 14 Nov. 1985, 38°29.22ʹN, 72°42.33ʹW, 2499 m, paratype ( USNM 1642633 About USNM ) GoogleMaps .— Off New Jersey, U.S. EPA DWD-106 Site Survey, Sta. G, Rep. 3, 18 Nov 1985, 38°55.60ʹN, 72°02.62ʹW, 2509 m (2, MCZ 161720 About MCZ ) GoogleMaps .— Off New England, U.S. North Atlantic ACSAR program, coll. G.W. Hampson, Chief Scientist. Sta. 3: Cruise NA-2, Rep. 1, 25 Apr 1985, 41°01.38ʹN, 66°20.18ʹw, 1340 m, GoogleMaps 3 paratypes USNM 1642634 About USNM ). Sta. 5: Cruise NA-3, Rep. 2, 04 Jul 1985, 40°05.08ʹN, 67°29.85ʹW, 2060 m, (1, USNM 1642635 About USNM ) GoogleMaps ; Cruise NA-4, Rep. 1, 25 Nov 1985, 40°05.06ʹN, 67°29.86ʹW, 2074 m (1, USNM 1642636 About USNM ) GoogleMaps ; Rep. 3, 25 Nov 1985, 40°05.07ʹN, 67°29.81ʹW, 2071 m (1, USNM 1642637 About USNM ) GoogleMaps ; Cruise NA-5, Rep. 1, 29 Apr 1986, 40°05.06ʹN, 67°29.94ʹW, 2052 m, paratype ( USNM 1642638 About USNM ) GoogleMaps ; Sta. 6: Cruise NA-1, Rep. 1, 05 Nov 1984, 40°05.09ʹN, 67°29.23ʹW, 2117 m, paratype ( USNM 1642639 About USNM ) GoogleMaps ; Cruise NA-2, Rep. 1, 29 Apr 1985, 40°05.04ʹN, 67.° 29.99ʹW, 2108 m, paratype ( USNM 1642640 About USNM ) GoogleMaps ; Rep. 2, 25 Apr 1985, 40°05.03ʹN, 67°29.13ʹW, 2108 m (1, USNM 1642641 About USNM ) GoogleMaps ; Rep. 3, 25 Apr 1985, 40°05.06ʹN, 67°29.13ʹW, 2107 m, paratype ( USNM 1642642 About USNM ) GoogleMaps . Sta. 8: Cruise NA-1, Rep. 1, 10 Nov 1984, 40°10.37ʹN, 67°37.43ʹW, 2175 m, paratype ( USNM 1642643 About USNM ) GoogleMaps ; Cruise NA-4, Rep. 1, 25 Nov 1985, 40°10.21ʹN, 67°37.24ʹW, 2184 m (1, USNM 1642644 About USNM ) GoogleMaps ; Cruise NA-5, Rep. 2, 25 Nov. 1985, 40°10.25ʹN, 67°37.33ʹW, 2179 m (1, USNM 1642645 About USNM ) GoogleMaps . Sta. 9: Cruise NA-2, Rep. 1, 03 May 1985, 39°50.43ʹN, 70°01.58ʹW, 1235 m (1, USNM 1642646 About USNM ) GoogleMaps ; Rep. 3, 03 May 1985, 39°50.42ʹN, 70°01.64ʹW, 1225 m (1, USNM 1642647 About USNM ) GoogleMaps . Sta. 10: Cruise NA-1, Rep. 2, 13 Nov 1984, 39°48.10ʹN, 70°05.29ʹW, 1234 m, paratype ( USNM 1642648 About USNM ) GoogleMaps ; Cruise NA-2, Rep. 3, 03 May 1985, 39°48.12ʹN, 70°05.24ʹW, 1210 m (2, USNM 1642649 About USNM ) GoogleMaps ; Cruise NA-6, Rep. 3, 28 Jul 1986, 39°48.09ʹN, 70°05.29ʹW, 1228 m, 2 paratypes ( USNM 1642650 About USNM ) GoogleMaps . Sta. 13: Cruise NA-6, Rep. 3, 30 Jul 1986, 39°48.25ʹN, 70°54.28ʹW, 1273 m, 2 paratypes ( USNM 1642651 About USNM ) GoogleMaps . Sta. 14: Cruise NA-2, Rep. 2, 05 May 1985, 39°40.93ʹN, 70°54.21ʹW, 2092 m (2, USNM 1642652 About USNM ) GoogleMaps . Sta. 15: Cruise NA-2, Rep. 2, 05 May 1985, 39°40.07ʹN, 70°54.27ʹW, 2145 m, 2 paratypes ( USNM 1642653 About USNM ) GoogleMaps ; Cruise NA-5, Rep. 3, 06 May 1986, 39°40.10ʹN, 70°54.31ʹW, 2140 m, paratype ( USNM 1642654 About USNM ) GoogleMaps .— Southeastern USA, U.S. South Atlantic ACSAR program, Off Cape Fear, North Carolina, coll. J.A. Blake, Chief Scientist. Sta. 12: Cruise SA-5, Rep. 1, 22 Sept 1985, 33°99.36ʹN, 76°97.27ʹW, 2004 m, paratype ( USNM 1642655 About USNM ) .

Description. A small, threadlike species; most specimens between 2.5 and 7 mm long. Holotype complete, 5.15 mm long, 0.07 mm across peristomium, 0.05 across far posterior setigers, with 24 setigers; large paratype a male, (USNM 1642634) complete in two parts, 7.27 mm long, 0.12 mm wide across peristomium, with 31 setigers. First 3–5 segments short, narrow, oval in shape, up to 1.5 times long as wide ( Figs. 6A, C View FIGURE 6 , 7A–E View FIGURE 7 ); following segments becoming elongated, moniliform, up to three to five times as long as wide ( Figs. 6A, C–D View FIGURE 6 , 7A–B View FIGURE 7 ); last 2–3 segments narrowing, bearing rounded pygidial lobe ( Figs. 6B View FIGURE 6 , 7F View FIGURE 7 ). Body generally cylindrical in cross section, no evidence of dorsal or ventral grooves. Color in alcohol; opaque white, with no pigment on body; most specimens with few to many elongate dark fecal masses (pellets) in middle setigers ( Fig. 7A–B View FIGURE 7 ).

Pre-setiger region narrow, tapering anteriorly, up to twice as long as wide. Prostomium, triangular, weakly set off from peristomium, conical tapering to narrow, apex ( Figs. 6A, C View FIGURE 6 , 7C–E View FIGURE 7 ); eyespots absent; nuchal organs narrow slits on posterior lateral margins of prostomium, difficult to observe with light microscope. Peristomium smooth, with no apparent annular rings ( Fig. 6A, C View FIGURE 6 ). Dorsal tentacles arise from posterior margin of peristomium ( Figs. 6A–B View FIGURE 6 , 7A, C, E View FIGURE 7 ). First pair of branchiae on setiger 1 dorsal to notosetae ( Fig. 6C View FIGURE 6 ); subsequent branchiae in same location; branchiae or stubs only rarely observed on small specimens. Dorsal tentacles and branchiae when present long, thin, weakly expanded apically.

Parapodia reduced with setae appearing to arise directly from body wall. Noto- and neuropodia distinctly separated from one another, separation not as wide in anterior segments. Capillaries present throughout; anterior notosetae numbering 3–4 per fascicle, longer than neurosetae, which number 2 or 3 per fascicle. Neuropodial bidentate hooks first present from setiger 3–6; hooks numbering one per fascicle at first, increasing to no more than two hooks over last 10–12 setigers, accompanied by 1–2 capillaries throughout. Notopodial bidentate hooks first present from far posterior setiger 21, with one hook at first, second hook present or absent in posterior-most segments; smallest specimens lacking notopodial hooks. Individual hooks with thickened, weakly curved shaft, tapering to bidentate tip with main fang and apical tooth each about same length ( Fig. 6G View FIGURE 6 ); hood or sheath absent.

Far posterior segments narrowing to a rounded, bulbous pygidium ( Figs. 6B View FIGURE 6 , 7F View FIGURE 7 ); anal cirri absent.

Methyl Green staining. No pattern.

Remarks. The majority of 70 specimens identified as C. rodmani n. sp. from the U.S. Atlantic continental slope are small and rarely exceeded more than one specimen per 0.09 m 2 box core sample. The specimens are so thin that after being emptied from the sample vials into a clean Stender dish with alcohol, they can often only be located visually after a careful search; if specimens cannot be located, the entire dish needs to be searched using the stereomicroscope; the labels and cotton plugs may also need to be rinsed and examined.

The long, thin, fragile body of this species indicates it is meiofaunal in habitat and that most specimens were likely not retained on the 0.3-mm-mesh-sieves used in the ACSAR program. The largest paratype was the only specimen determined to be sexually mature; it is a male with numerous sperm packets in the coelom.

Caulleriella rodmani n. sp. is closely related to C. filiformia n. sp., another threadlike species with which it may occur. In C. rodmani n. sp. the first pair of branchiae arise on setiger 1, dorsal to the notosetae, whereas in C. filiformia n. sp. the first branchiae are lateral to the dorsal tentacles on the posterior margin of the peristomium, with the second pair on setiger 1 dorsal to the notosetae. Rounded or moniliform segments typically occur along the entire of body of C. filiformia n. sp., while only the first 3–5 thoracic segments of C. rodmani n. sp. are rounded. Two short anal cirri occur on the pygidial segment of C. filiformia n. sp., whereas the pygidium of C. rodmani n. sp. is rounded and lacks anal cirri. In addition, the bidentate hooks of the two species are different. In C. filiformia n. sp. the apical tooth is an extension of an ‘alate’ hood or flange on the convex side of the shaft, whereas in C. rodmani n. sp., the apical tooth directly emerges from the end of the shaft and is not associated with a hood or flange. The dark elongate fecal pellets found in the intestine on most specimens assist in recognition.

Etymology. This species is named for Dr. James E. Rodman, retired Program Director, Division of Environmental Biology, National Science Foundation. Dr. Rodman initiated the PEET (Partnerships for Enhancement and Expertise in Taxonomy) Program and provided funding to this author for the study of polychaetes and training of students.

Distribution. U.S. Atlantic continental Slope from off New England to North Carolina, 1210–2509 m.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Cirratulidae

Genus

Caulleriella

Loc

Caulleriella rodmani

Blake, James A. 2021
2021
Loc

Caulleriella sp. 1

Hilbig, B. 1994: 194
1994
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF