34 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMAKANG. 



Abdomen of male, as in Eumedonus ; that of female unknown. 



This genus is closely allied to Eumedonus of Professor Milne Edwards (Crust, vol. i. 

 p. 349), and, like it, comes from the Eastern Seas. 



1. CERATOCARCINUS LONGIMANUS, Adams fy White. (Tab. VI. Fig. 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 (Balarnbangan). 



Cerotocarcinus longimanus, 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 (Balarnbangan). 



When alive, the colour of this species is blood-red, with five light bands across the 

 carapace. 



5. PARTHENOPE, Fabricius. 



1. PARTHENOPE CALAPPOLDES, Adams fy White. (Tab. V. Eig.5.) 



Thorace subtrigono postice truncato, antice rotundato, dorso verrucosiformibus subdepressis tuber- 

 culis obsito ; lateribus in parte anteriore obtuso rotundato lobo ; alto sinu post lobuin ; branchialibus 

 regionibus permagnis, coinpluribus tuberculis, jugo majorum tuberculorum ad angulos latero-posteriores 

 pertinentium et brevibus sequis intervallis circum niargines alte incisis. Mediana regione serie magnoruni 

 rotundatorum tuberculorum, anterioribus tuberculis proxime appropinquantibus, posterioribus distantibus ; 

 duabus caveis inter laterales et medianas regiones, et post caveas duabus altis foveis. 



Fronte lata, obtusa, antice rotundata, ad extremitatem subemarginata, denticulis in lateribus, tuber- 

 culifera in dorso. 



Chelis breviusculis et crassis ; brachio verrucoso, valida anteriore spinifera crista ; carpo exteme lsevi, 

 serie tuberculorum in superficie interiore ; manu serie magnorum tuberculorum pertinentium a digito 

 superiore intus ad basin articuli exteriore carina Isevi 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 with 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. 



