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



and more detailed description of Mr. de Man (/. c. p. 28). In 

 the female (which has not as yet been observed) the hand is 

 slender, not dilated and compressed as in the male, and its 

 external surface, although flattened, is less coarsely granu- 

 lated towards the fingers, which are nearly smooth. 



Sesarma intermedia (De Haan). 



Indo-Malayan seas (a male and female without definite 

 locality) . 



Metagrapsus punctatus, A. M.-Edw. 



Indo-Malayan seas (two males). 



Leiolophus abbreviatus (Dana). 

 Indo-Malayan seas (one male). 



Pinnotheres obesus, Dana ? (PI. XIV. fig. 4.) 



? Pitmothera obcsa, Dana, Cr. U.S. Expl. Exp. xiii. p. 380, pi. xxiv. 

 fig. 3 (1852). 



I thus designate three specimens of a Pinnotheres without 

 locality in the collection. The carapace is subglobose, with 

 the antero-lateral margins regularly rounded and entire, and 

 is nearly naked ; the front is very small, and projects slightly; 

 its anterior margin is rounded or subtruncated. The merus 

 of the outer maxillipedes is but little longer than broad, regu- 

 larly rounded at its distal end (where it is most dilated) ; its 

 outer margin also is arcuated, and its inner margin straight ; 

 its surface near the inner margin is somewhat thinly setose ; 

 the antepenultimate and penultimate joints are robust; the 

 latter is fringed with hairs along its outer margin and at its 

 distal end, which is obliquely subtruncated ; the slender dac- 

 tylus is articulated with the penultimate joint at a little before 

 the middle of its inner margin, and does not project beyond 

 its apex. The anterior legs are small and smooth, and present 

 nothing remarkable ; the ambulatory legs also are very slender 

 and naked. 



All the specimens are females. 



This species, in the form of the broadly dilated merus of 

 the outer maxillipedes, appears to differ from all the species 

 figured by Milne-Edwards in his revision of the group in 

 1853, and others since described. A specimen from Borneo 

 is in the Museum collection. A figure is given of the outer 

 maxillipede, because it is not quite of the form figured by 

 Dana ; but I do not think the difference is sufficient to war- 

 rant the specific separation of the two forms. 



i 



