G. M. Thomson. — On Neiv Zealand Crustacea. 231 



Colour pale-yellowish, covered with small black spots. Length about 

 0-25 inch. 



Hab. One specimen of this interesting Crustacean was obtained among 

 some seaweed washed up on the beach near the mouth of the Taieri river. 

 It differs from the figure (given in Brit. Sess.-eyed Crust.) in having more 

 slender limbs with the exception of the first pair ; otherwise it agrees per- 

 fectly. This species has hitherto only been recorded from the English and 

 French coasts, and from the Mediterranean. 



Amphipoda Noemalia. 

 Sub-fam. Lysianas sides. 

 Genus Anonyx, Kroyer. 



Superior antennse short, the peduncle very large at the base, and fur- 

 nished with a secondary appendage. Mandibles with a smooth incisive 

 margin, and no secondary plate, and having an appendage. First pair of 

 gnathopoda subchelate ; second pair long, slender, feeble, rudimentary, 

 subchelate. Telson single, squamiform, entu-e or cleft. 



(The characters on which this genus is separated from Lysianassa are 

 very insufficient, being mainly subchelate nature of the first pair of gnath- 

 opoda, and secondly the cleft telson. The first species following is an 

 Anonyx in all respects, except that its telson is entire, which is the case also 

 with A. plautus, Kroyer, an European species.) 



1. A. corjmlentus, n. sp. 



PL XVII., fig. 1. 



Cephalon rounded in front, hiding the antennae. Pereion greatly dis- 

 tended, so as to give the animal a very corpulent appearance ; coxse very 

 deep. Eyes not appreciable. Superior antennas short and very thick ; 

 basal joint cylindrical, hardly longer than it is thick, two following very 

 short ; secondary appendage minute, 2-jointed ; flabellum slightly longer 

 than peduncle, tapering, 4-jointed, first joint as long as or longer than the 

 next three, setose below. Inferior antennae slender, subequal with the 

 superior ; second and third joints of peduncle long, and subequal with the 

 6-7 -jointed flagellum. Gnathopoda small ; first pair densely fringed below 

 with simple hah's ; propodos narrowing to the extremity, lower margin 

 without a distinct palm ; dactylos curved ; second pair very slender, with 

 tufted setffi on the lower margin, propodos about three times as long as 

 broad, with a small curved dactylos. Four anterior pau's of pereiopoda 

 subequal, slender, naked, with narrow basa ; fifth pair short, setose, and 

 with the basa dilated into wide, rounded, squamiform plates. Three poste- 

 rior pairs of pleopoda terminating subequally, naked. Telson short, entii'e, 

 rounded. Length 0-23 inch. Colour yellowish. 



Hab. Dredged in Paterson Inlet, in 8 fathoms. 



