igii.] T. R. R. Stebbing : Indian I sopods. 191 



most likely correct, if all the structural features described above 

 have been rightly observed. Both pairs of maxillae appear to 

 offer distinctive characters, and others may perhaps be drawn 

 from the first antennae and the lower lip, but in regard to these 

 my dissections do not enable me to put forward trustworthy evi- 

 dence. The name of the genus refers to the removal of its type 

 species from the home in which M. Dollfus had placed it. 



Exalloniscus coecus (Dollfus). 



(Plate xii. A.) 



1898. Alloniscus coecus, Dollfus, in Weber's Zool. Ergebn. einer 

 Reise in Niederl. Ost-Indien, vol. iv, p. 375, pi. xv, fig. 

 22, in text 22 a, b. 



Dollfus gives the following description : — " Body broadly oval, 

 little convex, a little depressed, covered with fine granulations, 

 more accentuated anteriorly. Cephalon: frontal line sinuous, with 

 a feeble median process and very oblique subacute lateral lobes. 

 Prosepistome flat. Eyes none. Second antennae short, flagellum 

 of three subequal joints. Peraeon : first segment with hind margin 

 straight. Pleon, Telson — Lateral processes of the segments 3 — 5 

 rather broad, depressed. Pleotelson triangular with subobtuse 

 apex, sides a little sinuous. Uropods: base equalling the length of 

 the pleotelson, inner branches small but reaching beyond the pleo- 

 telson. Outer branches? Colour: white." The specimens were 

 taken by Prof. M. Weber at Java and Sumatra. Lines indicating 

 the natural size of specimen figured are 5X2 mm. , not consistent 

 with the description, body broadl}^ oval. Dr. Annandale's speci- 

 mens from Maddathorai, Travancore, measured about 5 X 3 mm. 

 Perhaps a true representation lies between my figure a little too 

 broad and that b5^ M. Dollfus rather too narrow. That they are 

 concerned with the same species can scarcely be doubted. 



