56 B. IV. Kimkcl, 



first extending slightly beyond second and as far as third ; rami of 

 first subequal, and not as long as peduncle, provided on dorsal 

 margin and apex with stout spines ; second uropods with rami similar 

 to those of first but not longer than j^eduncle ; third uropods with 

 lamelliform rami, outer one larger than inner and provided with 

 fascicles of spines on outer margin and truncated apex. 



Telson about as broad as long, rectangular, deeply incised, each 

 lobe bearing a process at inner angle and with group of 3 or 4 

 stout spines on distal margin. 



Many individuals occurred in the collection, the largest of which 

 were about 4 mm. in length. 



Sexual dimorphism not marked. 



Elasmopus pocillimanus (Bate, 1862), Delia Valle, 1893. 



1862. Maera pocillimanus. Bate, Cat. Brit. Mus., p. 191, pi. 34, 



fig. 7. 



1893. Elasmopus pocillimanus. Delia Valle, Fauna und Flora des 



Golfes von Neapel, vol. 20, p. 733; \)\. 1, fig. 4 ; pi. 22, fig. 23-25. 



Eyes compound and placed well toward anterior surface of face ; 

 interantennal lobes not prominent. 



First antennae longer than second, not more than ^/3 the length 

 of body ; peduncle moderately long, first 2 segments subequal, third 

 about ^/2 length of second ; flagellum about as long as peduncle, 

 made up of about 21 segments ; accessory flagellum 2-jointed. Second 

 antennae only slightly longer than peduncle of first ; gland cone 

 slender and pointed, extending beyond apex of third segment which 

 is not as broad as long ; last 2 segments of peduncle subequal, long 

 and slender ; flagellum short, not as long as last 2 joints of peduncle, 

 made up of 10 joints. 



Mandibles with 3-jointed palp, first joint of which is short, second 

 of moderate length and only slightly shorter than third which be- 

 comes broader near the middle and tapers toward the apex like a 

 knife blade, inner margin of tapering portion armed with closely set 

 row of short setae of equal size and 2 or 3 longer ones apically ; 

 cutting edge dentate, molar tubercle prominent. First maxillae with 

 2-jointed palp, the terminal joint of which is longer and thinner than 

 first and armed with a number of moderately stout spines at the 

 rounded apex ; outer plate of moderate size, with 6 branching and 

 pectinate spines on apical margin ; inner plate small, triangular, with 

 2 plumose spines on apex. Second maxillae of usual form. Maxilli- 

 peds with plates well developed ; inner plate rectangular with 

 plumose spines and spine teeth on apical margin ; outer plate not 



