of the Pontoniidae. 3S7 



(?) HarpiMua depressus, Stiinpson, Proc. Ac. N. Sei. Philad. 1860, p. 38. 

 (?) Pontonia (Harpilius) dentata, Richters, Decap. Mauritius, p. 165, 

 pi. xvii. figs. 36-38. 



Red Sea ; East Indies. 



Genus Anchistus, nov. 



Pontoniida? with rostrum long, compressed, in side view 

 deep, bent downwards, with broad, usually rounded end, 

 dentate at the tip only or without teeth ; thicker flagellum of 

 first antenna moderate, bitid ; scale of second antenna large ; 

 second maxilliped with penultimate joint broader than last 

 joint and bearing it terminally ; third maxilliped with last 

 two joints narrow, together longer than preceding joint, 

 which is moderately broad ; dactyles of last three pairs of 

 legs short, curved, of at least moderate breadth, with or 

 without a small tooth on the lower border, without a basal 

 protuberance. 



1. Anchistus Miersi (de Man), 1888. (Type.) 



Harpilius Miersi, de Man, Journ. Linn. Soc, Zool. xxii. p. 274, pi. xj\\. 

 figs. 6-10 (1888) ; Whitelegge, Funafuti Atoll, Crust, p. 148 (1897). 



Mergui Archipelago ; Ellice Group ; [British New Guinea]. 



2. Anchistus inermis (Miers), 1884. 



Harpilius inermis, Miers, 'Alert ' Report, Crust, p. 291, pi. xxxV. fig. B 

 (1884) ; Miiller, Verb. nat. Ces. Basel, 8, ii. p. 471 (1887). 



'bajA "■ West Australia ; Ceylon. 



3. Anchistus spinuliferus (Miers), 1884. 

 Harpilius spinuliferus, Miers, ' Alert' Report, Crust, p. ^92 (1884). 



Loc. ? 



4. Anchistus biuntjuiculatus, sp. n. 



An Anchistus with rostrum not exceeding antepenultimate 

 joint of antennular peduncles, much bent downwards, without 

 teeth ; antennal scale rather longer than the peduncle of 

 the first antenna; immovable finger of legs of second pair 

 much longer than movable finger and curved at the end ; 

 dactyles of legs of last three pairs with a hooked spine in the 

 middle of the under edge. 



Length 50 millim. 



[British New Guinea.] 



(?) Anchistus armatus (11. M. -Edwards), 1837. 

 Pontonia armata, II. M. -Edwards, II. N. Crust, ii. p. 359 (1837). 

 New Ireland. 



