CEUSTACEA. 35 



Front wide, obtuse, rounded anteriorly, slightly emarginate at the end, faintly dentated 

 on the sides, and tuberculiferous on the upper surface. 



Fore-legs rather short and stout j third joint verrucose, with a strong anterior spiniferous 

 crest ; fourth joint smooth externally, with a row of tubercles on the inner surface ; fifth 

 joint with a row of large tubercles, extending from the upper claw to the base of the joint, on 

 the inner surface, outer keel smooth and without spines ; claws large and strong, the lower 

 one with three large teeth. 



Abdomen, in the female, seven jointed, and covered with flattened tubercles. 



Hab. Eastern Seas. 



2. PARTHENOPE TARPEIUS, Adams 8f White. (Tab. VII. Fig. 2.) 



Thorace subtrigono, cornpluribus lsevibus depressis rotundatis tuberculis, in regionibus mediaua et 

 laterali majoribus obsito : lobo rotundato integro, in margine latero-anteriore ; alto sinu lobum a lateralibus 

 regionibus dividente; lateralibus regionibus dilatatis, rotundatis, postice angustatis, niagnis superficialibus 

 crenationibus circum margines ; posteriore margine serie validorum obtusorurn subconicalium tuberculorum 

 extrorsum et retrorsum directis. 



Fronte lata obtusa rotundata, subcrenulata, alte sulcata, vix laevi in superiore superficie. 



Chelis validis tuberculiferis, brachiis uno magno et compluribus minoribus tuberculis in acie anteriore ; 

 carpo lsevi, externe noduloso ; manu subtuberculifero latere in interiore superficie ; pedibus posterioribus 

 depressis, marginatis depressis subtriangularibus obtusioribus processibus. 



Abclomine in femina septem-articulato, obsito tuberculis, fbnbriato crebris setis. 

 Hab. Maria Orientalia. 



Carapace subtrigonal, covered with numerous smooth, depressed tubercles, larger in the 

 middle and lateral regions ; a rounded entire lobe on the latero-anterior margin, and a deep 

 notch, which separates it from the lateral regions, which are dilated, rounded, narrowed 

 posteriorly, with large superficial crenations round the edges ; the hind margin with a row of 

 strong, obtuse, sub-conic tubercles, directed outwards and backwards. 



Front wide, obtuse, rounded, subcrenulate, deeply channelled, and nearly smooth on 

 the upper surface. 



Fore-legs strong, tuberculiferous ; third joint with one large and several smaller tubercles 

 on the front edge ; fourth joint smooth, externally nodulous ; fifth joint with a rather faint 

 tuberculiferous ridge on the inner surface ; hind-legs flattened, edged with flattened, sub- 

 triangular, bluntish processes. 



Abdomen, in the female, seven-jointed, covered with tubercles, fringed with close-set setae. 



Hab. Eastern Seas (Caramatta Passage). 



LAMBRUS, Leach. 



[Additional Species.'] 

 11. LAMBRUS HOPLONOTUS, Adams Sf White. (Tab. VII. Fig. 3.) 



Thorace subpentagono, antice acuminato, ad latera subangulato, postice lato, obsito rotundis sequis 

 tuberculis, majoribus et crebrioribus in regionibus medians* et branchiali ; lateribus crenatis antice, armatis 



