304 MR. BELL, HORA CARCINOLOGICE ; 
exteriore lato, margine externo curvo, anticé 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 Æbalia, but distinguished from it by several obvious 
charaeters; 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 fosse, 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. levis, differs considerably from the other two, but must be referred to the 
same genus. 
PHLYXIA CRASSIPES, mihi (Tas. XXXIV. fig. 2). Testä subcarinatä, rostro quadrato, 
quadridentato; pedibus anticis testà plus quam duplo longioribus; brachiis rotundis 
medio tumescentibus. 
Hab. ad oras Australiæ 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 smallfissures. 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 0:5 in. | | | 
There are three specimens of this species in the British Museum, brought from Port 
‘Jackson. . Tt may be considered as the type of the genus. 
PHLYXIA LAMBRIFORMIS, mihi (Tas. XXXIV. fig. 1). Test carinatä, rostro triangulari ' 
emarginato, margine latero-anteriore inciso, latero-posteriore acutè 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 marginal ones conical ; anterior legs nearly a 
twice as long as the carapace, rather slender, the fingers slightly deflexed. 
