298 MR. BELL, HORiE CARCINOLOGICLE ; 



British Museum. It has a prima facie resemblance to a young M. carinata, but differs 

 from that species in its proportions, in the arrangement of the granules, in the hairy 

 bine on the anterior margin, and in the ultimate and penultimate joints of the posterior 

 feet being ciliated. 



Myra mammillaris, mihi (Tab. XXXII. fig. 5). Test& ovata, glabra, tuberculis parvis 



elevatis sparslm instructs ; dentibus posticis brevissimis, rotundatis. 

 Hub. ad oras Australia?. Muss. Brit., Bell. 



Carapace oval, somewhat produced before and behind, the surface polished, and studded 

 with numerous small distinct globular tubercles, which also form a line along the 

 middle of the back, around the margin, on the hepatic region, and on the pterygostomian 

 crest. Front somewhat waved, slightly emarginate, a small tooth over the inner canthus 

 of the orbit. The teeth on the posterior part rounded, not longer than broad, the lateral 

 ones compressed. External foot-jaws tuber culated on the anterior portion, the palp some- 

 what dilated outwards. Sternum with lines of minute tubercles anteriorly. Eirst pair 

 of legs in the male twice the length of the carapace, stouter than in the other species of 

 the genus ; the arm covered with depressed tubercles ; a scabrous line on the inner mar- 

 gin of the wrist, and on the outer and inner edge of the hand ; the fingers half the length 

 of the hand, sulcated and scabrous. The remaining legs filiform, slender, the surface 

 punctated, the terminal joint awl-shaped, sulcated. 



Length of carapace 2 in. 



Of this fine species there are several specimens in the British Museum and in my own 

 collection. It was brought from South Australia. Its prima facie relation to Perse- 

 phona is striking, but it differs from that genus in the essential generic characters, par- 

 ticularly in the form of the hand, and of the palp of the external foot-jaws. 



Myra variegata of Riippell (Krabben des Roth. Meeres, p. 17. t. 4. f. 4) is not a Myra, 

 but is probably a young individual of a species of Philyra. 



Genus Mtrodes, Bell. 



Char. Gen. — Testa ovata, rostro emarginato terminata, postice dentibus tribus, quarum media longior, 

 armata. Orbita fissuris tribus, brevibus. Fossa antennarice fere longitudinales. Pedipalpi externi 

 caule exteriore subcurvo, haud dilatato. Pedes antici testa vix longiores ; manibus pyriformibus, 

 haud longioribus quam latioribus ; digitis tenuibus valde elongatis, curvis, apice aduncis. Abdomen 

 Maris triangulare, segmentis tertio ad sextum coalitis, — F(emin.<e ? 



This genus, which is nearly allied to Myra, differs from it in the following particulars. 

 The antennary fossae are less oblique in their direction, being so placed that the anten- 

 nules He nearly longitudinally. The palp of the external foot-jaws is merely curved on its 

 outer edge, instead of being first dilated and then distinctly narrowed towards the apex, 

 as in Myra. But the most remarkable peculiarity is in the form and length of the ante- 

 rior legs, which in Myra are almost filiform, and, even in the female, more than twice as 

 long as the carapace ; whilst in the present genus they are not longer than that part, if in 

 both cases we except the fingers. The hand especially, which in Myra is always many 

 times longer than it is broad (in M. fug ax <5 not less than seven times), is in My r odes as 



