Cardnohgical Fauna of Lidia. 373 



Of the legs tlie first two- pairs are the shortest and slenderest, wliile 

 tlie middle two pairs are mucli the largest ajiij. have very broad mero- 

 podites. There are no " tjmpana." 



The abdonxen of the female consists of 7 separate segments, and is 

 very broad. 



67. GUstostoma dotilliforme, n. sp. 



Carapace rather depressed, slightly convex, smooth, with the 

 regions ill-defined ; its lateral borders are slightly arched and are finely 

 serrated anteriorly behind the acute, almost dentiform, antero lateral 

 angles- Front between a third and a fourth the greatest breadth of 

 the carapace, concave in the middle line. Upper boi'der of the orbit 

 sinuous, lower border prominent and finely serrated. 



Merus of the external maxillipeds larger than the ischium, 

 sculptured (somewhat as in the DotiUse) with a sort of Y-shaped 

 sulcus starting from the antero-external angle. The pterygostomian 

 regions also are sculptui'ed with branching or convoluted grooves mnch 

 as in the DoHUse. 



The second and third pair of legs, which are much longer than the 

 other two pair, are a little over 1| times the length of the carapace 

 and have an almost foliaceous meropodite with the anterior border 

 finely serrulate and the posterior border elegantly spinate : the anterior 

 border of the carpus and propodite of the second and third pair of legs 

 is tomentose. 



A single egg-laden female is in the Indian Museum : it was found 

 at Karachi, and its carapace is 7 millim. long and 9 millim. broad. 



Ttlodiplax, de Man. 

 Tylodiplax, de Mas, Zool. Jahrb., Syat. VIII. 1894-95, p. 59S (1895). 



Carapace deepish, quite flat dorsally, broader than long and broader 

 behind than in front, the lateral borders being posteriorly divergent 

 and having a distinctly convex curve, the regions more or less defined. 



Front between a third and a fourth the greatest breadth of the 

 carapace, not deflexed, grooved longitudinally. The orbits occupy the 

 rest of the anterior border of the carapace, but as the extent of this 

 border is a good deal less than the greatest breadth of the carapace, and 

 as the front is broad, the orbits have not the same elongate form as they 

 have in most species of Macrophthahnm, though otherwise similar. 

 Antennules and antennee as in Macrophthalmus. Eyes small, not terminal 

 on the eyestalks. 



715 



