Supplementary Material: 



Maine — Eastport, H. E. Webster coll., Webster and Benedict ID. (4 spec, 

 USNM 400). 



Florida — Hutchinson Island, St. Lucie County, T. Perkins ID., FSBC I 

 20677 (3 spec), 20681 (1 spec). 

 DESCRIPTION: 



Length, to 2.3 mm (previously reported to 3.6 mm); width, to 0.2 mm 

 (previously reported to 0.6 mm). Body slender, minute; complete speci- 

 mens with up to 27 setigers. Papillae scattered, long and short. Fro- 

 st o in i u m oval, with four large, lentigerous eyes in line across mid- 

 section and two small eyes near anterior border. Antennae clavate. 

 Palps short, fused dorsally, directed ventrally. Nuchal organs as 

 small, rounded lobes posterior to lateral eyes. Tentacular cirri cla- 

 vate, each with a long, glandular, dorsal papilla (Figure 30-18a). 

 Dorsal cirri subulate, replaced by a long papilla on setiger 2. Ventral 

 cirri slender, digitiform, shorter than parapodia. Pygidiura of Florida 

 specimens with two long, subulate, dorsolateral anal cirri, plus short 

 raidventral cirrus. Parapodial glands not evident. Superior simple seta 

 slender, minutely bidentate (Figure 30-18b), present on all setigers. 

 Superior composite falcigers long-bladed, unidentate or subbidentate , 

 with numerous fine serrations (Figure 30-13c). Inferior composite fal- 

 cigers with shorter blades having few serrations or smooth (Figure 30- 

 lod). Inferior simple seta slender, curved, pointed (Figure 3 - 1 8 e ) , 

 present on posterior setigers. Acicula solitary, with curved, pointed 

 tips (Figure 30-lSf). Pharynx extending to setiger 3; dorsal tooth 

 located about one-third way back. Provent r icle extending from setigers 

 3-4 to 5-6, with 17-20 rows of muscle cells. Gametes and natatory setae 

 present from setiger 8. 



REMARKS: S_. longicauda is newly reported from the Gulf of Mexico. Most 

 specimens in the BLM-OCS samples originally identified as Sphaerosyllis 

 erinaceus are probably S. longicauda. 



PREVIOUSLY REPORTED HABITAT: Low water to 35 in; sand, shells, rocks; on 

 pilings. 



GULF OF MEXICO BLM-OCS OCCURRENCE: Numerous stations off Florida (Fig- 

 ure 30-17); 19-189 m; coarse to fine-very fine sand, silty fine sand. 

 DISTRIBUTION: Maine to Florida, Gulf of Mexico. 



Sphaerosyllis aciculata Perkins, 1981 

 Figures 30-19, 20a-f 



Sphaerosyllis aciculata Perkins, 1981:1115, figs. 13a-c, 14a-j. 



MATERIAL EXAMINED: 



Gulf of Mexico BLM-OCS: 



MAFLA 2207J-8/77 (3 spec), 2207K-8/77 (1 spec), 2318G-8/76 (2 spec), 



2318K-8/76 (1 spec), 2420-7/76 (3 spec, USNM 55834), 2422E-7/76 (1 



spec), 2424C-7/76 (3 spec). 



Supplementary Material: 



F lor ida--Ilutchinson Island, St. Lucie County, 9.1 m, T. Perkins ID. 



(FSBC I 23561, 1 paratype). 



DESCRIPTION: 



Length, to 2.3 mm (previously reported to 2.2 mm); width, to 0.25 mm 



(previously reported to 0.1 ram without parapodia). Body slender, ra i- 



nute; complete specimens with up to 23 setigers. Papillae short, 



30-27 



