Genus Syllldes Oersted, 1845 



TYPE SPECIES: Syllldes longoclrrata Oersted, 1845. 



REFERENCES: 



Day, 1967:259. 



Banse, 1971:1469. 



Fauchald, 1977a:84. 



DIAGNOSIS: Prostomium with three antennae. Tentacular segment often 



collar-like and ciliated, with two pairs of tentacular cirri. Usually 



some dorsal cirri articled. Setae and acicula of anterior parapodia not 



modified. Pharynx usually unarmed. 



REMARKS: Banse (1971) provided a key to 12 species of Syllides , along 



with detailed descriptions and figures for a number of those species. 



Key to the Gulf of Mexico BLM-OCS Species of Syllides 



la. Superior simple seta slender, distally pointed (Figure 30-38b) . . 



Syllides floridanus, p. 30-45 



lb. Superior simple seta relatively thick, distally blunt (Figure 30- 



42b) 2 



2a. Blades of superior composite setae with basal spurs (spur may be 



difficult to see) (Figure 30-40c). . . . Syllides bansei, p. 30-47 



2b. Blades of superior composite setae without basal spurs 3 



3a. Blades of superior composite setae with faint basal serrations 



(Figure 30-42c); blade-length ratio 2-3:1 



Syllides fulvus, p. 30-50 



3b. Blades of superior composite setae with distinct, coarse basal 



serrations (Figure 30-44c); blade-length ratio about 5:1 



Syllides sp. A, p. 30-50 



Syllides floridanus Perkins, 1981 

 Figures 30-37, 38a-d 



Syllides floridanus Perkins, 1981:1151, figs. 31a-e, 32a-j. 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 



MAFLA 2211F-7/76 (1 spec), 2318C-8/76 (1 spec), 2640F-2/78 (1 spec, 

 USNM 65688). 

 Supplementary Material: 



Florida--Ilutchinson Island, St. Lucie County, 10.0 m, T. Perkins ID. 

 (FSBC I 23663, 1 paratype). 

 DESCRIPTION: 



Length, to 2.3 mm (previously reported to 3.5 mm); width, to 0.4 mm. 

 Body small, slender; complete specimens with up to 24 setigers. Prosto- 

 mium rounded, with six lentigerous eyes (Figure 30-38a). Antennae and 

 tentacular cirri missing on all specimens. Palps short, triangular, 

 fused basally. Tentacular segment only slightly inflated. Anterior 

 dorsal cirri long, wrinkled, some dorsal cirri of medial and posterior 

 regions with 6-9 enlarged, pigmented articles. Ventral cirri variable, 

 clavate to cirriforra, usually not extending beyond parapodia. Anal 



30-45 



