1S77.J CRUSTACEA, CHIEFLY FROM SOLTTH AMERICA. 657 



carapace. M. Milne-Edwards says of it, " les bords latero- 

 anterieurs sont uniformement denteUs sans etre creneUs ; couleur 

 rouge, uniformed The remarks upou 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 MM. 

 Milne-Edwards and Lucas in D'Orbigny's ' Voyage dans I'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 Miine- 

 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)^ 



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 trans- 

 verse 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 antennae 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 s]iecies 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. 



Hub. Cayenne. 



^ Hepattis tubercidatus of Saussure, from Guadeloujoe, 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 tlie national 

 collection, from Brazil. Specimens of a species from the West Indies and 

 Cayenne, in the British-Museum collection, which I think may be the adult 

 H. tubcrculatus, are very closely allied to the H. ancfusiafus, beiug 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. tubercidatus 

 they consist of purplish-pink spois, usually forming more or less oontiuuous 

 transverse lines. 



