BRACHYURA. 
193 
differences exposed ; L. affinis stated to be the young state of the latter ; 
L. suhspinosa, sp. n., Chile, rhomboidca, sp. n., East Indies [?], and inflata^ 
doubtful sp. n., West Indies, Streets, P. Ac. Phil. 1870, pp. 104-106. 
Iluenia hifnreata, sp. n., Streets, P. Ac. Phil. 1870, p. 107, New Zealand. 
Cyclometopa. 
Piliimnus hirtellus (Penn.), var. pontica, Czerniavski, 1. c. p. 75. 
Portumts holsaticus, Fabr., and puber, L. Some observations concerning 
its larva in the form of Zoea, A. Dohrn, Z. wiss. Zool. xx. 4, pp. 610-617, 
pi. 31. f. 12-14, and Jen. Z. Nat. v. p. 474. 
Catometopa. 
CatoptruSj g. n. Cephalothorax arcuate as in the Cyclometopa, its edges 
with numerous indentations ; basilar article of the outer antennae small ; 
endostome canaliculated ; third article of the outer maxillipeds truncated at 
its anterior and internal angle. Efferent channels as in Boscia . — C. nitidm^ 
sp. n., A. Milne-Edwards, Ann. S. Nat. (5) xiii. 1870, no. 2 (not paged), 
Samoa Islands. 
Oclamnus. 21 American species are described, and 12 figured, divided 
into three groups (probably of generic value). None are common to the 
Atlantic and Pacific , coasts (except G. stenodactylusj M.-Edw., Brazil and 
Chile). The new species described are: — G. heterophth(dmus and hetero- 
pleurus, sp. nn., Fonseca, Centr. America j G. princeps, sp. n., Corinto, West 
Nicaragua; G. armatus, sp. n., Fonseca; G. ornatus, sp. n., Centr. America; 
G. pugnax, sp. n. {—pugilator, Lee.), Newhaven to the Bahamas; G. rapaXy 
sp. n., Aspinwall ; G. mm'daXy sp. n., Para ; G. gibbosus, sp. n., Fonseca, S. F. 
Smith, Tr. Conn. Acad. ii. pp. 113-142, pi. ii. figs. 1-11, iii. figs. 1-5, iv. 
figs. 1-8. 
Cardiosoma crassum, sp. n., Fonseca ; guanhnmi, Ltr. ; qiiadrattim, Sauss., 
described by Smith, 1. c. pp. 142-144, pi. v. figs. 3-5. 
Pseudothelphusa plana, sp. n., Peru. Eight other species are placed in this 
genus { = Boscia, M.-Edw. preocc.), Smith, l.c. pp. 146-148. 
Opisthocera, gen. nov. In the character of the front it agrees with Pseu- 
dothalphnsa, but in the position of the antennae with Epiloboccra. 0. gihnanii, 
sp. n., Smith, 1. c. p. 149, pi. v. fig. 1, Isle of Pines [America]. 
Epiloboccra armata, sp. n., Bahamas ?, E. cubensis, Stimps. Smith, 1. c. 
pp. 150-152, pi. V. fig. 2. 
Glgptograpsus, gen. nov. The form of the carapace and number of lateral 
teeth recall Cryptograpsus ; but in the form of the maxillipeds it is allied to 
Heterograpsus. The form of the epistome and the peculiar deep efferent 
orifice furnish very distinctive characters. — G. impressus, sp. n., Acajutla, 
Centr. America, Smith, 1. c. p. 155. 
Sesarma sulcata, sp. n., Corinto, Nicaragua, S. occidentalis, sp. n., Acajutla, 
S. angusta, sp. n.. Pearl Island, Panama, S. reticulata, Say, cinerea, Say, and 
angustipes, Dana, are also described. Smith, 1. c. pp. 156-160. 
Prionoplax ciliatus, sp. n., Panama, Smith, 1. c. p. 160. 
Euryplax politus, sp. n., Panama ; E. nitidus., Stimps., redescribed. Smith, 
I c. pp. 162-164. 
Glyptoplax, gen. nov. Allied to Eucratopsis, but differs in the form of the 
