OCR Text |
Show 1S77.J CRUSTACEA, CHIEFLY FROM SOUTH AMERICA. 657 carapace. M. Milne-Edwards says of it, " les bords latero-anterieurs sont uniformement denteles sans etre creneles ; couleur rouge, uniforme." The remarks upon this species in Gay's ' Historia de Chile,' coincide with this description. The specimens described by Dana, collected at Valparaiso, were of " a yellowish or ochreous base closely covered with a brownish-purple reticulation;" and this is nearly the colour of the figure of M M . Milne-Edwards and Lucas in D'Orbigny's 'Voyage dans l'Amerique meridionale," and of a specimen (dry) in the collection of the British Museum. Other specimens (dry) in the Museum collection are of a nearly uniform pink colour, with narrow sinuated light-yellow spots and lines ; and this also is the colour of the specimens from Peru, in spirits. The broad truncate teeth of the antero-lateral margins are more or less crenulated in all the specimens that I have seen; and Milne- Edwards's description is certainly inaccurate in this respect, as was first noted by M . Herklots, in his comparison of this species with his H. van benedeni (itself the H. decorus of Herbst), Bijdragen tot Dierkundige. Abh. v. p. 35 (1852)1. ANOMURA. CLIBANARIUS, Dana. CLIBANARIUS CAYENNENSIS, sp. n. (Plate LXVI. fig. 1). Carapace flattened ; anterior margin more prominent and straight at the bases of the eyes, oblique on each side at bases of external antennae, with a small median frontal tubercle, and with a transverse nearly semicircular suture behind the anterior margin. Eye-peduncles very slender, and nearly as long as the anterior margin of the carapace, their basal scales short and denticulated on their antero-external margins ; basal scale of the external antennse about reaching to the extremity of the penultimate joint of the peduncle. Anterior legs stout, the right the largest, hands rather finely granulated and clothed towards the tips with short stiff hairs, the palms somewhat swollen at base, the fingers excavated, with black corneous tips, and opening horizontally (as in all the species of the genus). Tarsi of the second and third pairs of legs longer than the penultimate joint, subcylindrical, slightly curved, with a small, black, terminal nail, and thinly clothed with short brown hairs. Fifth pair of legs much more slender than the fourth. Colour uniform yellowish-brown. Hab. Cayenne. 1 Hepatus tuberculatus of Saussure, from Guadeloupe, is evidently founded upon an immature example; the transverse tuberculated ridges mentioned in his description are generally prominent in the young of other species, as for example H. angustatus, Fabricius, of which there is a large series in the national collection from Brazil. Specimens of a species from the West Indies and Cavenne 'in the British-Museum collection, which I think may be the adult H tuberculatus, are very closely allied to the H. angustatus, being in fact only distinguished from it by the coloration : in H. angustatus the markings form brownish-pink spots and blotches; in the specimens I refer to H. tuberculatus they consist of purplish-pink spots, usually forming more or less continuous transverse lines. |