CEUSTACEA. 
25 
abdominal segments is a round, dark spot. The entue suiface of the animal is smooth, 
hairless, hard, polished, and porcellanous. Eyes black. 
Hab. Borneo. 
Zebrida AdamsU, White. Pro. Zool. Soc., 1847. 
A very distinct variety, from about twelve fathoms, in the Sooloo Seas, had the carapace 
of a light green, with deep, red-brown stripes, and the legs and chelae of a pearly semi- 
opaque white, very distinctly banded with deep red-brown. 
The specimen from which the foregoing description is taken, was dredged from a sandy 
bottom, at about six fathoms water, near the mouth of the Pantai river, on the coast of 
Borneo. The description, it ought to have been remarked, was from a living specimen ; but 
even the dried individual in the Museum collection is very distinctly marked. 
III. PARTHEN OPIDiE. 
In the family of Parthenopida, the results of the Expedition furnish us with forms highly 
interesting to the Crustaceologist, including two new genera and ten new species. The 
genus Cryptopodia has been strengthened and confirmed by the discovery of a new and well- 
marked species, and several peculiar forms of Parthenope and Lambrus are here for the first 
time indicated. In their habits, the members of this group are feeble and inactive, feigning 
death when captured, and living generally in deep water, seeming to prefer a stony or gravelly 
bottom ; some specimens of Parthenope were obtained by the dredge on the coast of Borneo, 
in thirty fathoms water, from a clear sandy floor ; and the sandy mud of the China Sea, in 
many parts, abounds in Lambri. 
1. LAMBRUS, Leach. 
1. LAMBRUS IIARPAX, Adams fy White. Tab. VI. Pig. 3. 
Thorace subtrigonali, lsevi, in froute rotundato, in medio carinato, carinata tribus rotundatis tubercuhs 
aniiata antice furcatii, intervallain depression triangulare exhibente, margimbus lateralibus valde crenatis, cre- 
nationibus depressis et rotundatis ; angulis latero-posterioribus in depresso, triangulari, subobtuso, spinoso, 
nrocessu desinentibus ; posteriore thoracis parte valida spina retrorsum et extrorsum directa, paululum 
luberculifera et valida carina in posteriore parte regionis brancliiahs coutmuata; altera mmore spina, propius 
mediam lineam posits, valde carinata, spatio depresso inter se spinamcpie priorein; tnbns parvis tubercuhs 
in linefi intermedia, una centrah, et un& ad ntrumquc latns. 
Fronts paululum products, antice rotunda^, margme paidulum denticulate. 
rhpli , diivjlici longitudine thoracis; brachio et carpo, margimbus tubercuhs rotundatis armatis ; 
„ sujleriore „g«l«n 
Hab. Oram Brunenscm, (Mare Sinensc.) 
Carapace subtrigonal, smooth, rounded in front, carinated in the middle, the keel armed 
H 
