29); 20-189 m; coarse to inediuni-f ine sand, silty fine sand, clayey silt. 

 DISTRIBUTION: North Sea, Scotland, Gulf of Mexico. 



Synelmis cf. albini (Langerhans, 1881) 

 Figures 29-31, 32a-f 



Ancistrosyllis albini Langerhans, 1881:107, fig. 16a-e. 



Synelmis albini — Pettibone, 1966:191 [in part], fig. 19a-d, 20a-f [not 



fig. 21a-d]. 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 

 MAFLA 2528E-2/78 (1 spec). 

 DESCRIPTION: 



Length, 9.0 mm; width, 0.5 mm. Single specimen complete with 59 seti- 

 gers. Prostomium (Figure 29-32a) with three small antennae of equal 

 length. Eyes present. Palps with small ventral palpostyles (Figure 29- 

 32b). Dorsal and ventral tentacular cirri equal in length, about twice 

 as long as antennae. Dorsal and ventral cirri foliaceous, with acumi- 

 nate tips (Figure 29-32c), equal in length throughout. Body with smooth 

 integument. Notopodial spines beginning on setiger 5, accompanied by 

 slender aciculum (Figure 29-32c). Neuropodia with 5-10 serrate setae 

 tapering to fine tips (Figure 29-32d), and 1-2 furcate setae (Figure 29- 

 32e). Pygidium with a pair of anal cirri (Figure 29-32f). 

 REMARKS: The descriptions of Synelmis albini (Langerhans, 1881) are at 

 present quite confused. Pettibone (1966:191) has synonymized several 

 species under S. albini ; however, she considered the furcate setae to be 

 fractured simple setae and therefore not a valid character. On the 

 specimen examined herein, the furcate setae are definite, well-defined, 

 and consistent in shape and number. For other species of Synelmis , such 

 as S_. albini , S^ rigida (see Hartman, 1947b:498), and S. gorgonensis 

 (Monro, 1933c), seemingly well-defined furcate setae are also described 

 and figured. Until type material of the various species of Synelmis is 

 re-examined, the specimen described in this study can only be tentative- 

 ly identified. 



PREVIOUSLY REPORTED HABITAT: Intertidal to 2 538 m. 



GULF OF MEXICO BLM-OCS OCCURRENCE: One station off Florida (Figure 29- 

 31); 37 ia; coarse sand. 

 DISTRIBUTION: Widespread in tropical and subtropical waters. 



Synelmis sp. A 

 Figures 29-33, 34a-d 



MATERIAL EXAMINED: 



Gulf of Mexico BLM-OCS: 



MAFLA 26451-6/75 (1 spec). 



DESCRIPTION: 



Length, 42.0+ mm; width, 1.5 mm. Single specimen incomplete with 75 



setigers. Prostomium (Figure 29-34a,b) with three antennae, equal in 



length. Palps with digitiform ventral palpostyles. Dorsal and ventral 



tentacular cirri equal in length, about twice as long as antennae. 



Dorsal cirri of setiger 1 slightly longer than following ones. Dorsal 



and ventral cirri (Figure 29-" 'tc) equal in length, filiform throughout. 



29-35 



