34 
ZOOLOGY OF THE VOYAGE OF H.M.S. SAMAKANG. 
Abdomen of male, as in Eumedoms ; that of female unknown. 
This genus is closely allied to Eumedoms of Professor Milne Edwards (Crust, vol. i. 
p. 349), and, like it, comes from the Eastern Seas. 
1. CERATOC ARCINU S LONGIMANUS, Adams Sf White. (Tab. VI. Eig. 6.) 
Duobus acuminatis transversis tuberculis, ad extremitatem pilis cristatis, in dorso thoracis, post oculos ; 
primo pedum pari minutis verrucis obsito compluribus altis longitudinalibus sulcis ; digitis basi excepta 
nigro-fuscis. 
Hab. Oram Brunensem (Balambangan), 
Cerotocarcinus bngimams, Proc. Zool. Soc. 
Two pointed transverse tubercles, tufted with hair at the end, on the back of the 
carapace, behind the eyes ; the first pair of legs covered with minute warts and with several 
deep longitudinal grooves ; the pincers blackish brown, except at the base. 
Hab. North coast of Borneo (Balambangan). 
When alive, the colour of this species is blood-red, with five light bands across the 
carapace. 
5. PARTHENOPE, Fabricius. 
1. PARTHENOPE CALAPPOIDES, Adams 8f White. (Tab. V. Eig. 5.) 
Thorace subtrigono postice truncato, antice rotundato, dorso verrucosiformibus subdepressis tuber- 
culis obsito ; lateribus in parte auteriore obtuso rotundato lobo ; alto sinu post lobum ; branchialibus 
regionibus permagnis, compluribus tuberculis, jugo majorum tuberculorum ad angulos latero-posteriores 
pertinentium et brevibus eequis intervallis circum margines alte incisis. Mediant regione serie magnorum 
rotundatorum tuberculorum, anterioribus tuberculis proxime appropinquantibus, posterioribus distantibus ; 
duabus cavcis inter laterales et medianas regiones, et post caveas duabus altis foveis. 
Fronte lata, obtusa, antice rotundata, ad extremitatem subemarginata, denticulis in lateribus, tuber- 
culiferti in dorso. 
Chelis breviusculis et crassis ; brachio verrucoso, valida auteriore spiniferh crista ; carpo externe lsevi, 
serie tuberculorum in superficie interiore ; manu serie magnorum tuberculorum pertinentium a digito 
superiore intus ad basin articuli, exteriore carina lsevi et sine spinis ; digitis magnis et validis, inferiore 
tribus magnis dentibus. 
Abdomine in femina septem articulis, depressis tuberculis obsito. 
Hab. Maria Orientalia. 
Carapace subtrigonal, truncate behind, rounded in front, upper surface covered with 
wart-like, rather depressed tubercles ; sides at the forepart with an obtuse rounded lobe, 
behind which is a deep notch ; branchial regions very much developed, covered until tubercles, 
with a ridge of larger tubercles extending to the latero-posterior angles, and deeply incised 
at short regular intervals round the edges ; the middle region with a row of large rounded 
tubercles, the anterior of which are close together, and the posterior isolated ; two hollows 
between the lateral and middle regions, and two deep pits behind the hollows. 
