648 ME. E. J. MIEKS OK THE 



Some of the genera in the first and second sections of this sub- 

 family approach the Leptopodiinge in the length of their epistoma, 

 narrow interocular space, and coalescent postabdominal segments. 

 Consequently the Acanthonychinfe are to be regarded as a series 

 parallel with, rather than inferior to, the Leptopodiinge in a natural 

 arrangement. 



§ Carapace elongated, ovate-cylindrical. Bostrum elonqated^emar- 

 c/inate or bifurcated. J^rceocular minute, or toanting. JEijes im- 

 inohile. Last two pairs of legs very short. 



This section would appear to correspond with Stimpson's sub- 

 family Anomalopinae. 



Xenocaecinus, White (Huenioides, A. Milne-Edwards). (Plate 

 XII. fig. 5.) Carapace ovate-cylindrical. Pr^eocular spine 

 wanting. Antennae concealed beneath the rostram. Type Xe- 

 nocarcinus tulerculatus, "White. 



*ANOMALOTHiE(^;«oOT«ZopMS,Stimpson,nom.pr8Boc.). Carapace 

 almost subcylindrical. Prasocular minute. Antennae visible from 

 above. Type Anomalotldrfurcillatus (Stimpson). 



§§ Carapace in the male subtriangular. Rostrum simjjle, et&a^e-. — 

 Amhulatory legs regidarly decreasing in length. 



* Byes immohile. Sexes (wliere Jcnoion) dissimilar. 



*MocosoA, Stimpson. Carapace subpentagonal. Eostrum 

 subtriangular, entire, obtuse, excavated below. Prffiocular ? uj-&i;->X 

 Outer maxillipedes with the merus joint short, broad, and pro- 

 duced at its antero-external angle. Anterior legs ? Type Mo- 

 cosoa crelrepunctata, Stimpson. 



Teigonothie, Miers. Carapace subtriangular. ' Hostrum en- 

 tire, obtuse, flattened below, and produced into lateral carinae. 

 Prffiocular wanting. Outer maxillipedes with merus joint not 

 produced at its antero-external angle. Anterior legs rather small, 

 palm compressed. Type Trigonothir oltusirostris, sp. n. 



A single specimen,locality unlaiown,is in theMuseum collection. 



Htjenia, Be Kaan. Eostrum slender, deep, and laterally 

 compressed, acute ; prasocular spine small. Sexes dissimilar (the 

 carapace in the female being produced into large lateral lobes or 

 expansions). Hands compressed, cristate above. Ambulatoiy 



