Mr. E. J. Miers on Malaysian Crustacea. 465 



lateral margins slightly reflexed ; the first five postabdominal 

 segments are very short, and are not laterally produced ; the 

 terminal segment is almost semicircular in outline, smooth 

 above, with a longitudinal median raised line on its upper 

 surface. The second joint of the antennae (in a dorsal view) 

 is considerably enlarged and nearly quadrate ; the following 

 joints (except the last) of a similar form, but successively 

 smaller, the terminal minute and slender. The penultimate 

 and antepenultimate joints of the inferior antennas are slen- 

 derer and more elongated than the preceding, the terminal 

 is minute. The coxal joints of the second to fifth legs be- 

 come successively more acute ; those of the sixth and seventh 

 legs are acuminate and spiniform (in an inferior view). 

 None of the basis joints of the thoracic legs are dilated or 

 distinctly carinated ; the rami of the uropoda are slender and 

 rounded at the distal ends. Length of the larger example 

 about 11 lines, breadth 5| lines. 



Two specimens are in the collection, both presenting the 

 characters of the female sex, the brood-pouches being deve- 

 loped. The length of the smaller is 8 lines. 



The dilatation of the antenna! joints is analogous to that 

 characteristic of the genus Geratothoa ; but the antennas are 

 remote from one another at their base. 



Lironeca emarginata, Bleeker. 



This species is represented in the collection by a single 

 specimen (a female) of large size (nearly 1 inch 4 lines) . 



The Lironeca laticauda described by me (P. Z. S. 1877, 

 p. 677, pi. lxix. fig. 5) from Manchuria is distinguished by 

 the form of the front, which is not produced, by the much 

 broader coxal joints of the thoracic legs (which are not fully 

 exhibited in the dorsal view of the animal given in the figure 

 cited above), and the more dilated basis joints of the three 

 posterior pairs of thoracic limbs. 



Lironeca Renardi, Bleeker. 



Of this species (as of the preceding) there is in the collec- 

 tion only a single specimen (a female). The strongly-lunate 

 form of the first segment of the body, with its projecting 

 antero-lateral lobes, gives it a resemblance to CymotJwa irregu- 

 laris. Length -| inch (8 lines). Both this and the preceding- 

 species are stated by Bleeker to have been taken from the 

 skin of various fishes inhabiting the sea of Batavia. L. 

 Renardi bears a considerable resemblance to the freshwater 

 L. daurica, described by me (1. c. p. 676, pi. lxix. fig. 4) 



