herein because it is felt that the degree of papillation, shape of the 

 parapodia, and shape of the dorsal cirri constitute specific differ- 

 ences. The Gulf of Mexico BLM-OCS specimens of P. berkeleyae possess a 

 glandular organ anteriorly as in Litocorsa stremma Pearson, 1970, and 

 Litocorsa sp. A (described herein). 



PREVIOUSLY REPORTED HABITAT: Sand, shell; intertidal to 29 m. 

 GULF OF MEXICO BLM-OCS OCCURRENCE: Off Florida (Figure 29-23); 37-53 m; 

 coarse to fine sand. 

 DISTRIBUTION: Washington, California, Gulf of Mexico. 



Pilargis sp. A 



Figures 29-25, 26a-d 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 



MAFLA 2209B-6/76 (2 spec), 2209J-6/76 (2 spec), 2210E-6/76 (1 spec), 

 2210F-6/76 (2 spec), 2211C-8/77 (1 spec), 2423E-11/77 (1 spec), 

 2423G-11/77 (1 spec, USNM 86960); STOCS 4/III-5 Sp/79 (1 spec, USNM 

 86962), 5/IV-6 Sp/76 (1 spec, USNM 86963); IXTOC S52-3 11/79 (1 spec, 

 USNM 86961). 

 DESCRIPTION: 



Length, 20+ mm; width, to 0.80 mm. Largest specimen incomplete with 110 

 setigers. Prostomium (Figure 29-26a) with small, papillose lateral 

 antennae. Palps with small palpostyles. Tentacular cirri equal in 

 length to lorsal cirri of setiger 1. Dorsal cirri of setigers 2 and 3 

 smaller than Lhise of setiger 1 and those from setiger 4 on (Figure 29- 

 26a). Dorsal cirri without distinct cirrophores (Figure 29-26b). Ven- 

 tral cirri beginning on ^'ciger 1. Body with relatively few, small to 

 large papillae dor.sally (Figure 29-26a); ventrum with few minute papil- 

 lae. Neurosetae minutely bifid with serrate margins (Figure 29-26c). 

 Pygidium (Figure 29-26d) vith a pair of papillose anal cirri. 

 REMARKS : Pilargis sp. A is similar to P. maculata Hart man, 1947b, in 

 having relatively few papillae. It differs from the latter in having 

 longer tentacular and dorsal cirri. Pilargis sp. A is also similar to 

 some individuals of P. verrucosa Saint Joseph, 1899, described by 

 Katzmann e_t_ al . (1974:16), but differs from them in having serrate 

 neurosetae. P ilargis sp. V is similar to P_. berkeleyae Monro, 1933c, 

 but differs from the latter in being much less papillose and in having 

 dorsal cirri without inflated cirrophores. The shape and degree of 

 inflation of the dorsal cirri, However, can vary according to the con- 

 tents of the body (Pettibone, pers. comm.) as well as the degree of 

 contraction as reported for P. berkeleyae (Pettibone, 1966:163). 

 GULF OF MEXICO BLM-OCS OCCURRENCE: Off Florida and Texas (Figure 29- 

 25); 15-43 m; coarse sand, stlty fine to very fine sand, silty and 

 clayey sand, clayey sandy silt. 



Genus Parandalia Emerson and Fauchald, 1971 



TYPE SPECIES: Parandalia ocularis Emerson and Fauchald, 1971. 



REFERENCE: 



Emerson and Fauchald, 1971:19. 



DIAGNOSIS: Palps not fused; palpostyles terminal, sometimes eversible. 



Antennae and tentacular cirri absent. All parapodia biramous, or 



29-28 



