articles, ventral ones with 8-13 articles. Dorsal cirri with 7-36 



articles anteriorly, 5-16 articles in midbody region. Ventral cirri 



ovoid, extending beyond parapodia anteriorly. Anal cirri articled. 



Composite falcigers with finely serrate, bidentate blades, teeth oblique 



(Figure 30-86b,c) to hooked (Figure 30-86d,e), superior blades slightly 



longer than inferior ones. Inferior simple seta slender, bidentate, 



present on far posterior setigers. Acicula thick, emergent, numbering 



1-2 per parapodium. Pharynx extending from setigers 1-4 to 8-11; trepan 



not observed. Proventricle extending from setigers 8-12 to 11-14, with 



14-18 muscle cell rows. Pharynx 1.3-3 times longer than proventricle; 



proventricle 1.5-2 times longer than wide. Sexually modified segments 



from setiger 47 in largest specimen. 



REMARKS: T. parvidentata is newly reported from the Gulf of Mexico. 



This species was originally confused with T. vittigera in the BLM-MAFLA 



collections. 



PREVIOUSLY REPORTED HABITAT: 11 m; coarse calcareous sand. 



GULF OF MEXICO BLM-OCS OCCURRENCE: Several stations off central and 



northwestern Florida (Figure 30-85); 37-117 m; coarse sand, clayey silt. 



DISTRIBUTION: East coast of Florida, Gulf of Mexico. 



Trypanosyllis coeliaca Claparede, 1868 

 Figures 30-87, 88a-e 



Trypanosyllis coeliaca Claparede, 1868:513, pi. 13, fig. 3. 

 Trypanosyllis coeliaca — Fauvel, 1923:270, fig. lOlf-h. 

 Trypanosyllis coeliaca — Perkins, 1981:1155, figs. 33a-g, 34a-f. 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 



MAFLA 2211H-7/76 (2 spec), 2211J-7/76 (1 spec), 2853G-8/77 (1 spec, 

 USNM 65696). 

 Supplementary Material: 



Florida — Hutchinson Island, St. Lucie County, T. Perkins ID., (1 spec, 

 FSBC I 20684), 10.0 m (1 spec, FSBC I 20689), 10.3 m (1 spec, FSBC I 

 20690). 

 DESCRIPTION: 



Length, to 5.3 ram (previously reported to 12 mm); width, to 0.6 mm 

 (previously reported to 0.65 mm). Body broad, dorsoventrally flattened, 

 complete specimens with up to 72 setigers. Prostomium rectangular to 

 pentagonal, with four large, lentigerous eyes (Figure 30-88a), and small 

 ventral ocular spots. Antennae inserted at anterior margin of prosto- 

 mium; median antenna with 5-10 articles, lateral antennae with 3-9 arti- 

 cles. Palps blunt, basally separated, shorten than prostomium. Dorsal 

 tentacular cirri with 8-10 articles, ventral ones with 5-7 articles. 

 Dorsal cirri with 5-13 articles anteriorly, 4-8 articles in midbody 

 region. Ventral cirri fusiform to auricular, extending beyond para- 

 podia. Anal cirri missing. Composite falcigers with finely serrate, 

 bidentate blades (Figure 30-88b,c), teeth becoming mere pronounced pos- 

 teriorly (Figure 30-88d). Inferior simple seta bidentate (Figure 30- 

 88e), present on far posterior setigers. Acicula stout, emergent, 

 usually numbering two anteriorly, one posteriorly. Pharynx extending 

 from setigers 1-4 to 7-9; trepan not observed. Proventricle extending 

 from setiger;, 7-10 to 10-13, with 14-18 muscle cell rows. Pharynx 1.2-2 

 times longer than proventricle; proventricle 1.3-2 times longer than 



30-93 



