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THE VOYAGE OF H.M.S. CHALLENGER. 
carina of the posterior margin of the carapace well developed, hut the rostrum is shorter 
than in Notolopas brasiliensis (about half as long as the first frontal portion of the 
carapace), and its spines are coalescent for nearly half their length and then strongly 
divergent (see PL VIII. fig. lc). 
Subfamily 2. Schizophrysina:. 
Schizophrysinee, Miers, Journ. Linn. Soc. Lond. (Zool.), vol. xiv. p. 659, 1879. 
Carapace very broadly triangular, or oval, or nearly circular. Rostrum very short or 
obsolete. Chelipedes (in the male) small, slender ; the fingers usually excavated at 
the tips. 
In the genera referred to this subfamily the carapace is broadly subtriangulate or 
nearly circular ; the epistoma short, the basal antennal joint largely developed, and the 
chelipedes have the fingers more or less excavated. 
Schizophrys, White. 
Schizophrys, White, Ann. and Mag. Nat. Hist., ser. 2, vol. ii. p. 282, 1848. 
„ Miers, Journ. Linn. Soc. Lond. (Zool.), vol. xiv. p. 660, 1879, et synonyma. 
Carapace broadly subpyriform (nearly orbiculate) or narrower and more elongated, 
depressed or moderately convex, and armed with a series of lateral marginal spines, and 
with tubercles, which tend to become spinuliferous, upon the dorsal surface. Orbits 
large, with fissures or notches both in the upper and lower margins, and with no 
prseocular spine. Spines of rostrum short and armed with one or more accessory spines 
upon their outer margins. Post-abdomen (in the male) distinctly seven-jointed. Eyes 
rather large, retractile. Antennae with the basal joint moderately enlarged and armed 
with a spine both at the antero-external and antero-internal angles, the mobile joints and 
flagellum not concealed by the rostral spines. Exterior maxillipedes with the merus 
joints distally truncated, the antero-external angle rounded and not much produced, the 
antero-internal angle emarginate. Chelipedes (in the adult male) with the merus and 
carpus spinuliferous ; palm smooth, elongated and somewhat compressed ; fingers 
excavated or rarely acute at the distal extremity, and with an intermarginal hiatus when 
closed. Ambulatory legs moderately elongated, with the joints subcylindrical ; dactyii 
shorter than the penultimate joints. 
The following species are referable to this genus : Schizophrys dichotoma, Milne 
Edwards, from the Mediterranean (Balearic Islands); 1 the very variable Schizophrys 
aspera (Milne Edwards), common throughout the shallower waters of the Indo-Pacific 
1 I have seen no specimens of this species, and am not aware that its occurrence in any other locality has been 
recorded. 
