304 MR. BELL, HOILE CARCINOLOGICiE ; 



exteriore lato, margine externo curvo, antice angustato ; caule interiore segmento penultimo late- 

 ribus parallelis, ultimo triangulari. Abdomen in utroque sexu segmentis a tertio ad sextum coalitis. 



A genus very nearly allied to Ebalia, but distinguished from it by several obvious 

 characters ; as the three tubercles on the posterior margin of the carapace, the rounded 

 notch in the superior margin of the orbits, the communication of these cavities with the 

 antennary fossa?, and the form of the external foot-jaws. There are three species in the 

 British Museum, two of which are from Port Jackson, and the third from New Zealand. 

 The latter, P. Icevis, differs considerably from the other two, but must be referred to the 

 same genus. 



Phltxia cbassipes, mihi (Tab. XXXIV. fig. 2). Testa subcarinata, rostro quadrato, 

 quadridentato ; pedibus anticis testa plus quam dupl6 longioribus ; brachiis rotundis 

 medio tumescentibus. 



Hab. ad oras Australiae orientales. Mus. Brit. 



Carapace rhomboidal, slightly carinated, the rostrum prominent, with four minute teeth, 

 depressed in the centre ; a triangular tooth on the margin of the hepatic region, and three 

 slight projections on that of the branchial; posterior margin with three teeth, the central 

 one conical, and placed a little above the other two, which are broadly triangular. Eyes 

 conspicuous above ; orbits with a broad rounded notch, and two small fissures. External 

 foot-jaws smooth, the basal segment elongated, with parallel sides, the second joint of the 

 stalk rhomboid, with a process where it joins the basal ; terminal joint triangular ; palp 

 broad at the base, slightly curved on the outer margin, narrowed forwards ; anterior legs 

 twice and a half the length of the carapace ; arm smooth, round, slightly thickened above 

 the middle ; wrist curved, smooth ; the hand twice as long as it is broad, rounded, the 

 fingers greatly deflexed, flattened, nearly as long as the hand, the moveable one with a 

 notch near the base to receive a broad tubercle on the other; the remaining legs 

 diminishing regularly in length from the second to the fifth, the joints slightly tumid, 

 carinated on each side, the nail very long, slender and curved. Abdomen in each sex 

 with the third to the sixth joints united, in the male lanceolate triangular, in the female 

 with the shield formed by the united joints very round, the seventh joint very small and 

 distinct from the others. 



Length of carapace 05 in. 



There are three specimens of this species in the British Museum, brought from Port 

 Jackson. It may be considered as the type of the genus. 



Phltxia lambbifobmis, mihi (Tab. XXXIV. fig. 1). Testa carinata, rostro triangulari 



emarginato, margine latero-anteriore inciso, latero-posteriore acute carinato. 

 Hab. ad oras Australia; orientales. Mus. Brit. 



Carapace rhomboidal, approaching to orbicular, granulose, tuberculated, carinated, the 

 margin with a strong notch between the hepatic and branchial regions, an obtuse tooth 

 on the former, and a sharp carina on the latter ; of the three posterior teeth, the one on 

 the intestinal region is acute and recurved, the marginal ones conical ; anterior legs nearly 

 twice as long as the carapace, rather slender, the fingers slightly deflexed. 



