140 CRUSTACEA. 



Taken from a Comatula brought up in twelve fathoms water, north 

 of Viti Lebu, within the coral reefs. 



Length, one and a half lines. Colour flesh-red, with two large hol- 

 low half moons marked transversely on carapax, the two placed in 

 opposite positions, so that the convexity of the anterior is towards the 

 front, and that of the posterior behind. 



Antero-lateral margin concave and scabrous ; lateral angle acute 

 or nearly so. Third joint of exterior maxillipeds nearly square, 

 breadth little greater than length. Flagelluin of outer antennae pro- 

 jects a little beyond apex of praeorbital tooth. Eyes on short pedun- 

 cles, and directed straight transversely, and in an upper view only 

 the reticulate part is seen. A minute spine on anterior apex of 

 peduncle. 



CRYPTOPODIA FORNICATA (Fabrictiis) . 



Singapore. 



Male: Carapax broad subtriangular, arcuate behind, an angle in 

 either lateral margin which is nearly a right angle ; surface smooth, 

 antero-lateral portion depressed, near middle a concave triangular 

 area; beak small, broad triangulato-ovate subacute, faintly denticu- 

 late; posterior margin entire or nearly so; antero-lateral margin 

 nearly straight, subsinuous, irregularly denticulate. Hand somewhat 

 three-sided, upper edge spinoso-dentate ; arm widens behind towards 

 apex, hinder margin denticulate, anterior margin erose and denticu- 

 late. Finger of hand with two spines above. Joints of eight poste- 

 rior feet with an alate margin on upper side ; third joint alate above 

 and below, and also denticulate ; tarsus styliform, alate, acute. Abdo- 

 men minutely tuberculous. 



Length of carapax, nine lines ; greatest breadth, one inch and two 

 lines; breadth of beak, one and three-fourths lines; length of beak, 

 one and a half lines. 



Cancer fornicatus, FABH.., Ent. Syst., ii. 453. 

 Cryptopodia fornicata, EDW., Crust., i. 362. 



