Mr. E. J. Miers on Malaysian Crustacea. 307 



very well with Milne-Ed wards's short diagnosis of this species. 

 The eyes, in these specimens, do not reach quite to the antero- 

 lateral angles of the carapace. The arm of the anterior legs 

 has one or two spinules at the distal end of its inner margin ; 

 the wrist has a spinule on its inner surface; the hand is 

 slender, granulated on its upper, and slightly on its outer 

 surface ; the lower finger is bent downward, so as to form a 

 distinct angle with the inferior margin of the hand ; the upper 

 finger (when closed) meets the lower at its apex only ; and the 

 two enclose a large triangular space. The inner margin of 

 the hand and arm is clothed with dense hair. 



Specimens in the British-Museum collection from Singa- 

 pore, the Mauritius, Penang, and Australia, which have 

 been referred to M. carimmanus, belong to the following 

 species. 



Macrqphthalmics convexits. 



Maerophthahmis convexus, Stm. Proc. Ac. Nat. Sci. Phil. p. 97 

 (1858). 



The specimen I refer to this species belongs to Milne- 

 Edwards's second section, having the carapace less than twice 

 as broad as long, and the inner surface of the hand unarmed. 

 The carapace is coarsely granulated on the sides ; and the 

 branchial regions are sometimes armed with two small granu- 

 lated prominences, with the antero-lateral angles spiniform 

 and prominent; posterior to these, on the lateral margins, is a 

 second tooth ; the front is spatulate ; the eye-peduncles do not 

 quite reach to the end of the antero-lateral teeth ; the anterior 

 legs (in the male) have the inner margins of the arm and 

 wrist granulated, the hand rounded and finely granulated on 

 its upper margin, with a longitudinal granulated line (not a 

 ridge) on its outer surface close to the lower margin; the 

 lower (immobile) finger is deflexed, but does not form so de- 

 cided an angle with the lower margin of the hand as in the 

 preceding species ; the distal end of the palm and the fingers 

 are hairy on their inner surface ; the fingers (when closed) 

 include a much narrower space than in M. carinimanus ; the 

 ambulatory legs are smooth, not pectinated, scantily fringed 

 with hair, and with a very small spine (which is sometimes 

 obsolete) near the distal end of the upper margin of the 

 merus. Length 7 lines, breadth at second marginal tooth 

 13 lines. 



Indo-Malayan seas (a male). 



This species is evidently allied to M. simplicipes and M. 

 affinis, Guerin, from Bombay, which, however, are repre- 

 sented as having two teeth behind the antero-lateral or extra- 



