134 



FASCICULI MALATENSES 



this form by a careful examination of the valves and the soft parts, and in so 

 far as there are differences (admittedly slight) between this and the last 

 species, those differences are present here. 



30. Ligia exotica, Roux. 

 Budde-Lund, hop. Terr., p. 266 (1885). 



Four small specimens. Jambu River. 



'From mud of mangrove swamp. Malay name, Gutuprahu (boat-louse).' 



On the Malay name of this animal Mr. Annandale writes me as follows: — 

 ' This wood-louse is called " Gutu prahu" in the Patani dialect, il Kutu prahu " in 

 more correct Malay. At Patani it is also called " Hibu prahu" i.e., boat 

 parasite (Jit. boat mother) ; but 1 think that it shares these names with a large 

 earwig which is commonly found on the seashore just above high-tide mark.' 



31. Rocinela mundana, Lanchester 

 Proc. Zool. Soc, p. 378, pi. xxxv, fig. 9 (1902). 



An ovigerous female. Ban Sai Kau. 



' From the mouth of a Silurid fish, from pool in rice-fields.' 



In my previous description I have said that the anterior legs are unarmed, 

 but this statement is probably wrong as, in this specimen, I find that they are 

 armed. The spines, however, are very small and few in number and only 

 visible under the high power of the microscope. On the tarsi I find two, side 

 by side, subdistally and one subproximally, and three subdistally on the femora ; 

 all very short and thick. The apex of the telson is also a little more rounded 

 in this specimen. As my figure shows, the whole body is marked with rather 

 irregular dull-brown pigment areas, giving it a somewhat spotted appearance. 

 The type was also procured in freshwater, from the gills of a skate. 



