coRorniiDJj. 239 



hairs ; palm ohlique, deeply concave, defined by one or two short 

 spines. Third j)air of poreiui)0(la sliorter than the preoediiiii, 

 dactylos anteriorly directed ; last two pairs subequal, considerably 

 longer than the third. Posterior pair of plcopoda scarcely reaching 

 beyond the extremity of the preceding ; inner ramus foHaceous, 

 tipped with a strong straight spine ; outer shorter than the inner, 

 and terminating in two strong hooks. Telson short, obtuse, 

 ha^•ing four hairs on the broad apex, and three in a depression on 

 each side. 

 Length ^S^ths of an inch. 



Hah. Marseilles. 



9. Amphithoe Eaymondi. (Plate XLII. fig. 1.) 



Amphithoe Raymondi, Savir/ny, Eyyjyte, Crust, pi. 11. f. 5. 

 Edwards, Hist, des Crust, iii. p. 32. 



Eyes oblong-ovate, horizontal. Superior antenna) as long as the 

 animal, having the first joint of the peduncle as long as the 

 cephalon ; second a little longer than the first ; third short, scarcely 

 more important than the fii'st articulus of the flagellum ; flagellum 

 four times as long as the pedimcle. Inferior antenna; having tho 

 peduncle reaching a little beyond the peduncle of the superior ; 

 flagellum scarcely longer than the peduncle. First pair of gnatho- 

 poda having the propodos ovate, tapering, palm acute ; dactylos 

 slender. Second paii' of gnathopoda like the first. Third pair of 

 pereiopoda shorter than the preceding, fourth and fifth longer than 

 the third. Posterior pair of pleopoda reaching a little beyond the 

 preceding, rami short. Telson acute. 

 Hah. Egypt (Savigny). 



10. Amphithoe filosa. (Plate XLII. fig. 2.) 



Cymadusa filosa, Sariyny, Eyypte, Crust, pi. 11. f. 4. 

 Ampbitoe filosa, Eihcards, Jhii. des Set. Nat. xx. p. 377 ; Hist, des 

 Crust, iii. p. 32. 



Guerin-Mcneville, Icmiogr. Cn(st. pi. 26. f. 9. 



Male. — Superior antenna) longer than the animal ; flagellum four 

 times as long as the peduncle. Inferior antenna; about one-third 

 shorter than the superior ; peduncle extending beyond the ex- 

 tremity of the peduncle of the superior. Gnathopoda subequal : 

 first pair having the carpus as long as the propodos ; jjropodos as 

 long again as broad, palm straight, oblitiue ; dactjdos as long as 

 the palm : second pair like the first, but a little laiger. First two 

 pairs of pereiopoda subequal ; third shorter tlian the second, having 



