12 B. IV. Kunkel, 



first gnathopods; wrist with posterior margin greatly elongated to 

 form slender triangular process which extends as far as apex of 

 posterior margin of hand, which is much larger than that of first 

 gnathopods, more triangvilar in form with palm at right angles to 

 axis of joint and ^/s as long as anterior margin, and finely serrate, 

 and with prehensile angle provided with 2 stout spines ; finger long, 

 curved, with fine teeth on inner margin. 



Uropods, 3, biramous ; terminal uropods extending beyond others, 

 with outer ramus shorter than inner and somewhat shorter than 

 peduncle which is slender. 



Telson slender, triangular, entire. 



The species was represented by several specimens about 3 mm. 

 long from Flalts Village in sand from low water to 2 fathoms, and 

 also from Castle Harbor in dead coral. 



Delia Valle recorded the species from the Gulf of Naples at 

 5 fathoms. 



Leucothoe spinicarpa (Abildgaard, J 789), Boeck, 1860. 



1789. Gammarns spimcarpus. Abildgaard, in O. F. Miiller, 

 Zool. Danica, vol. 3, p. 66; pi. 119, fig. 1-4. 



1860. Leucothoe spinicarpa. Boeck, Bemaerk. norske Amphip. 

 Forhandl. ved de Skand. Naturforsk., p. 654. 



Eyes compound, reniform, of medium size. 



First antennae scarcely ^/s as long as body, slightly longer than 

 second ; peduncle about 2^/2 times as long as flagellum ; first joint 

 moderately stout, cylindrical ; second of about same length but more 

 slender; third joint hardly more than ^/4 as long as second and 

 scarcely to be differentiated from first joint of flagellum which is 

 short and composed of 8 or 9 segments ; accessory flagellum 1-jointed, 

 rudimentary. Second antennae with short flagellum ; third joint of 

 peduncle short, twice as broad as long ; fourth joint long and slender ; 

 fifth joint about -/a as long as fourth ; flagellum about as long as 

 last joint of peduncle and composed of about 7 segments. 



Mandibles without molar tubercle but with incisive plate well 

 dentated and with numerous spines on spine row ; palp well devel- 

 oped, first joint short, with small process on inner margin ; second 

 joint long with spines on inner margin ; third joint somewhat longer 

 than first and provided with a few spines on rounded apex. Lower lip 

 with plates broad and rounded. First maxillae with inner plates small, 

 triangular and with single spine on apex ; outer plates moderate with 

 usual spines on oblique distal margin ; palp 2-jointed, somewhat longer 

 than outer plate, armed apically with a few spines. Second maxillae 



