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vx | 
288 Scientifi Iutelligenc ghi. 
h y 
G. ?. PraxEs, Leach.*—Carapax non lineolatus, lzvis, fere quad- 
ratus, parce oblongus. Frons rectus. Articulus maxillipedis 
externi Stius latior quam longior, cordatus.  'larsi spinulis 
armati. 
G. 8. HenrenaPsus, Dana. t—Carapax non lineolatus, (res leevis, 
lateribus plus minusve arcuatis. Frons rectus aut rectiusculus, 
antennis internis tranversis. Articulus maxillipedis externi Suus | 
fere orbiculato-cordatus. "T'arsi inermes. 
G. 9. CvgTocRaPsus, Dana.—Carapax gibbosus, T dd 
non lineolatus. Frons sursum sinuosus, antennis internis obliquis, 
inplicis frontis insitis. Articulus maxillipedis externi 3tius subor- 
biculato-cordatus.  l'arsi inermes. 
xa ? 9. SESARMINZE.—Antennz internz fronte tectz:e. — Articulus max- 
illipedis externi 3tius costá obliquá in 2dum productá notatus. 
l. Articulus mazillipedis externi 3tius apice rotundatus. 
G. 1. SzsanuA, Say.i—Carapax quadratus, sepe partim lineolatus, 
lateribus rectis, fronte recté prarupto. Abdomen maris versus 
basin sterno contiguo vix angustius. "Tarsi sepe armati. 
G. 2. SanMaTIUM, Dana.—Carapax subquadratus, lateribus arcu- 
atis, fronte curvatim declivi. | Abdomen saris versus basin 
sterno contiguo vix angustius. "l'arsi inermes. 
2. Articulus mazvillipedis externi 3tius apice truncatus et sepe excavatus. 
G. 3. CvcLocnarsus, Edw.S—Carapax levis, medio planus, ad. 
margines anteriores declivis, lateribus arcuatis, integris. —. Abdo- 
nen maris versus basin sterno contiguo vix angustius. 
G. 4. CnasuacNarHus, DeH.||—Carapax convexus, subquadratus, 
lateribus arcuatis et antice emarginatis, fronte curvatim declivi. 
Oculi breves. — Abdomen maris versus basin sterno contiguo 
parce angustius. 
G. 5. Hzrice, IDeH.*[—Carapax quadratus, lateribus parallelis, 
rectis. Oculi longiusculi. Abdomen aris versus basin sterno 
contiguo multo angustius. | die: 
ni 
3. PLAGUSINJE. Antenne interne sinubus frontis longitudinalibus 
apertae. 
G. 1. AcaxrHorus, De H.**— Corpus valde depressum.  Articu- 
lus maxillipedis externi 3tius oblongus, parvus, apice 2di multo 
angustior. Ramus maxillipedis 1mi internus apice angustus et 
not transversus. 
* Mss. Mus, Brit.; the genus is recognized in Bowdich's * Madeira and Porto Santo," 
p. 151; and more lately i in Bell's Brit. Crust., p. 133.—Nautilograpsus of Edwards, 
Crust. ii, 89. 
T Grapsus (subgenus) of De Haan, F. Jap. p.31; Cyclograpsus, in part, of Ed- 
wards, Crust. ii, 7*1. 
t Jour. Acad. Nat. Sci, i 716, 1817. .JPachysoma, of De Haan, Faun. Japon., p. 38. 
8 Crust. ii, —— Gnathochasmus, of M'Leay, Smith's Illust. Zool. S. Africa, and 
Cat. Crust. Brit. Mus. by A. White, 1841, 40. 
1j Faun. Japon. p. 27. «4| Faun. Japon, p. 28. 
; ** Faun. Japon, p. 29. Corresponds to P/agusia clavimana. 
* 
: dt 
