228 Mr. E. J. Mlers on Malaysian Crustacea. 



is mainly distinguished by the relatively longer spines of the 

 carapace and shorter legs of the second pair, is not specifi- 

 cally distinct. Amboina is mentioned by Bleeker as the 

 habitat of the first, and W. Sumatra (Padang) as the habitat 

 of the second species. 



Micippa cristata (Linn.). 

 Jay a, a fine adult male. 



Tiarin ia corn igera ? 



? Pisa cornigera, Latr. Encycl. Aleth. x. p. 141 (1825). 



F Perieera cornigera, M.-Edwards, Hi-t. Nat. Crust, i. p. 336 (1834). 



Tiarinia cornigera, Dana, U.S. Expl. Exp. Cr. i. p. 110, pi. iii. fig. 5 

 (1852). 



Carapace broadly pyriform, narrowing rapidly from the 

 middle of the branchial region (where it attains its greatest 

 width) to the orbits, covered with more or less conical and 

 acute irregularly-disposed unequal tubercles ; three more pro- 

 minent and rounded tubercles are placed in the middle of the 

 cardiac region, and three in a transverse series on the posterior 

 margin. The rostrum is imperfect ; but from the single 

 spine remaining it is probable that the rostral spines were 

 parallel to their apices, straight and shorter than the width of 

 the interorbital part of the carapace. There is a small supra- 

 ocular spine ; the anterior legs are robust ; the arm irregularly 

 tuberculated ; wrist nearly smooth ; palm smooth, enlarged, 

 compressed, longer than broad ; fingers arcuate and meeting 

 only at the apices ; on the inner margin of the upper finger 

 near the base is a small tubercle ; the first ambulatory legs 

 are considerably elongated. Length to base of rostrum 1 inch 

 3j lines, breadth 1 inch 2^ lines. 



Java, Karangbollong (one adult male). 



The descriptions of Latreille's and Milne-Edwards's P. cor- 

 nigera are not sufficiently detailed for me to be certain that I 

 am right in referring the example described above to it ; it is, 

 however, probably identical with the specimen described and 

 figured by Dana as T. cornigera (Cr. U.S. Expl. Exp. xiii. 

 p^HO, pi. iii. fig. 5, 1852), although the tubercles of the 

 carapace are apparently more numerous. 



Cyclocceloma, gen. nov. 



Carapace suboblong, somewhat elongated, rounded behind 

 and slightly constricted behind the orbits, which are tubular, 

 projecting laterally, without spines, and with a small circular 

 opening as in many Periceridffi. Spines of rostrum very small. 

 Basal joint of antennae very greatly enlarged, as in Othonia, 



