Syllides fulvus (Marion and Bobretzky, 1875) 

 Figures 30-41, 42a-d 



Anoplosyllis fulva Marion and Bobretzky, 1875:28. 

 Syllides fulva — Banse, 1971:1472, fig. 2a-f. 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 



SOFLA 4D-5/81 (1 spec, USNM 89897); MAFLA 2211C-11/77 (1 spec), 2640F- 

 2/78 (1 spec, USNM 65689), 2640H-2/78 (1 spec), 2645H-6/75 (2 spec), 

 2645D-2/78 (1 spec). 

 DESCRIPTION: 



Length, to 1.9 mm (previously reported to 2.3 mm); width, to 0.3 mm 

 (previously reported to 0.45 mm). Body small, slender; complete speci- 

 mens with up to 26 setigers. Prostomium and dorsum usually covered with 

 small brown pigment spots. Prostomium rounded, with four eyes, and two 

 small ocular spots at base of palps (Figure 30-42a). Palps erect, 

 triangular, fused basally. Nuchal organs as long ridges between prosto- 

 mium and peristomium. Antennae and tentacular cirri clavate. Peristo- 

 mium somewhat inflated. First two pairs of dorsal cirri clavate to 

 cirriform; following pairs with 5-17 long, slender articles. Ventral 

 cirri digitiform, usually not extending beyond parapodia. Pygidium with 

 short midventral cirrus; lateral anal cirri missing. Acicula slender 

 with small knobbed tips in all setigers. Superior simple seta thick, 

 blunt, lightly serrate on convex edge (Figure 30-42b); slender on last 

 few setigers. Composite falcigers minutely bidentate, blades broad 

 basally and faintly serrate (Figure 30-42c,d), blade-length ratio 2-3:1. 

 Pharynx extending to setigers 2-4. Proventricle extending from setigers 

 3-4 to 6-7, with 27-42 muscle cell rows. Gametes first present from 

 setiger 6 or 7. 



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

 PREVIOUSLY REPORTED HABITAT: Low water; rocks covered by Halimeda tuna , 

 without sediment. 



GULF OF MEXICO BLM-OCS OCCURRENCE: Scattered records in northeastern 

 Gulf (Figure 30-41); 35-106 m; coarse to medium sand. 

 DISTRIBUTION: Mediterranean, Gulf of Mexico. 



Syllides sp. A 



Figures 30-43, 44a-d 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 

 MAFLA 2532E-7/76 (1 spec). 

 DESCRIPTION: 



Length, 3.4 mm; width, 0.45 mm. Body slender, complete with 29 seti- 

 gers. Prostomium rectangular, with small palps; eyes absent (Figure 30- 

 44a). Antennae missing. Peristomium inflated. Dorsal tentacular cirri 

 about twice as long as prostomium, irregularly wrinkled; ventral ten- 

 tacular cirri shorter. Dorsal cirri long, wrinkled anteriorly; becoming 

 articled in midbody region, with 7-13 glandular articles. Ventral cirri 

 clavate, extending beyond parapodia. Pygidium with two long, filiform, 

 lateral cirri and one short midventral cirrus. Acicula slender, distal- 

 ly knobbed. Superior simple seta thick, blunt, with serrate hood (Fig- 

 ure 30-44b). Composite falcigers minutely bidentate (Figure 30-44c,d); 



30-50 



