NO. 1936. AMPHIPODS FROM THE GULF OF MEXICO— PEARSE. 



377 



Family COROPHIID^. 



CERAPUS TUBULARIS Say. 



Fish Hawk station 7292, Gulf of Mexico, off Northwest Channel, 

 104 fathoms; several specimens. 



UNCIOLA LAMINOSA, new species. 



Body dorsally broad, flattened. Head with rostrum distinct, 

 acute; lateral margins straight, posterior angles rounded. Side 

 plates very shallow, first and second with front angles forming strong 

 acute spines, third and fourth somewhat angulate in front but not 



Fig. 7. — Unciola lajiixosa. (jI, first antenna; cfi, second antenna; e', third epimeeite; (7', first 



GNATHOPOD; (fi, SECOND GNATHOPOD; inn, MANDIBLE; mp, MAXILLIPED; mx», FIRST MAXILLA; 7ftj' 

 SECOND maxilla; t, TELSON; U^, FIRST UROPOD; V?, SECOND UROPOD; U\ THIRD UEOPOD. 



spiny. Pleon segment 3, postero-lateral angle acute, with a shallow 

 sinus above. Eyes oval. 



First antenna elongate, second segment about equal to first in 

 length, third more than half as long as second; flagellum not as long 

 as peduncle, 7-segmented, accessory flagellum unknown except for 

 one segment (perhaps 1-segmented). Second antenna with the two 

 basal segments laminar and spiny on outer margin; first segment less 

 than two-tliirds as lon^ as second, third shorter than second and 

 slender; flagellum 5-segmented. First maxilla with nine teeth on 

 outer plate and four at tip of palp. First gnathopod mth second 

 segment of medium width; fifth segment short, broad, produced on 

 posterior margin; sLxtii very broad, with basal process projecting 



