AUSTRALIAN MALACOSTRACA. 103 



Genus Alope, "White. 



Carapace smooth. Beak short, serrated above, buried in a 

 deep groove, which has a spine on each side in front. Eyes with 

 a thick, short peduncle, situated in a hollow on each side, and 

 with a spine external to them on each side of the carapace, which 

 is shorter than the inner spine. Inner antennae thick, each with 

 two flagella, of which one is very short. Outer antenna? wfth 

 the basal scale longer than the joints of the peduncle, the 

 flagellum very long. External maxillipedes very large, from the 

 base nearly as long as the animal, first joint the longest, third 

 joint more than twice as long as the second, compressed, blunted 

 at the end. Anterior legs robust, with well-developed chelae ; 

 second pair very slender, chelate, with many-jointed wrist 

 (as in Alpheus) ; remaining legs slender, claws serrated below. 

 [White.] 



361. Alope palpalis. 



Alope palpalis, White, Proc. Zool. Soc, p. 124 (1817) ; Ann. 

 Mag. Nat. Hist. (Ser. 2), i., p. 225 (1818) ; Miers, Zool. 

 " Erebus and Terror," Crust., p. 4, pi. iv.. fig. 1 (1874) ; Cat. 



Crust, N.Z., p. 84 (1876). 



Beak four-toothed above, entire below, about twice as long as 

 the spine on each side. Terminal segment of the tail with a 

 longitudinal median groove above, and with two pairs of small 

 spiues at its extremity. Anterior legs with the hand rough, the 

 fingers opening horizontally. Length 2\ in. 



Australian Coast. Found also in New Zealand. 



Family IV. PALjEMONIDJE. 



Second pair of legs much larger and longer than the first, 

 wrist never annulate. Mandibles deeply bilobed, often palpi- 

 gerous. Rostrum well developed. 



Genus Anchistia, Dana. 



Bostrum slender, generally ensiform and elongate. Body 

 scarcely depressed, often compressed. Eyes moderate ; anten- 

 nules with two flagella. Mandibles not palpigerous. The 

 antennae provided with two flagella, one scarcely bifid. External 

 maxillipedes slender, pediform. 



M 



