"^'iSi!^,i:t" ^MMm in the Uni.

BRACHYURA. 193
differences exposed; L. affinis stated to be the young state of the latter;
L. subspinosa, sp. n., Chile, rhomboidea, sp. n., East Indies [?], and inflata,
doubtful sp. n., West Indies, Streets, P. Ac. Phil. 1870, pp. 104-106.
Huenia bifurcata, sp. n., Streets, P. Ac. Phil. 1870, p. 107, New Zealand.
CYCLOMETOPA.
Pilumnus hirteUus (Penn.), var. pontica, Czerniavski, I. e. p. 75.
Portunus 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.
Catoptrus, 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. nitidus,
sp. n., A. Milne-Edwards, Ann. S. Nat. (5) xiii. 1870, no. 2 (not paged),
Samoa Islands.
Gelasimus. 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. stenodactylus, M.-Edw., Brazil and
Chile). The new species described are:—67. heterophthalmus and heteropleurus,
sp. nn., Fonseca, Centr. America; G. princeps, sp. n., Corinto, West
Nicaragua; 67. armatus, sp. n., Fonseca; 67. ornatus, sp. n., Centr. America-
G.pugnax, sp. n. (=pugilator, Lee), Newhaven to the Bahamas; G. rapax,
sp. n., Aspinwall; 67. mordax, 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 l_5 iv
figs. 1-8.
Cardiosoma crassum, sp. n., Fonseca; guanhumi, Ltr.; quadratum, Sauss.
described by Smith, I. 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, I. c. pp. 146-148.
Opisthocera, gen. nov. In the character of the front it agrees with Pseudothalphusa,
hut in the position of the antennas with Epilobocera. O. gilmanii
sp. n., Smith, 1. c. p. 149, pi v. fig. 1, Isle of Pines [America].
Epilobocera armata, sp. n., Bahamas ?, E. cubensis, Stimps. Smith I c
pp. 150-152, pi v. fig. 2.
Glyptograpsus, 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.—67. impressus, sp. n., Acajutla
Centr. America, Smith, I. c. p. 155. ' '
Sesarma sulcata, sp. n., Corinto, Nicaragua, S. occidental, sp. n., Acajutla
S. angusta, sp. n., Pearl Island, Panama, S. reticulata, Say, cinerea, Say and
angustipes, Dana, are also described. Smith, I. c. pp. 156-160.
Prionqplax ciliatus, sp. n., Panama, Smith, I. c. p. 160.
Euryplax politics, sp. n., Panama; E. nitidus., Stimps., redescribed. Smith
/. c. pp. 162-164. ' '
Glyptoplax, gen. nov. AUied to Eucratopsis, but differs in the form of the