1 32 FASCICULI MALATENSES 



20. Diogenes mixtus, Lanchester. 



Proc. Zoo/. Soc, p. 367, pi. 39, fig. 2 (1902). 



Patani Bay. 



Four specimens, and one larger with two anemones on the shell. 

 The most constant, and at the same time the most distinctive, features 

 of this species are the following : — 



The length of the inner lobe of the antennal acicle. 

 The number of granules in the two rows on the carpus. 

 The extension of the row of granules on the lower finger up to 

 the carpal joint. 



The number of granules on the fingers varies here from 27-30, and on the 

 inner row of the palm they reach 12-14. The external row on the palm is 

 always terminated at the finger-joint by two spinous granules placed each in 

 the same transverse line and a little out of the line of those behind ; of these 

 I have only included one in my enumeration. On the lower outer surface of 

 the palm the spiniform granules tend to disappear. 



21. Clibanarius infraspinatus, Hilgendorf 

 de Man, Mergui Crust., p. 237 (1888). 



Two specimens. Patani Bay. 



22. Coenobita compressus, M. Edw. 

 Ortmann, Zool. Jahrb. Syst. v, p. 318 (1892). 



1 $ . Patani Bay. 



The granulation on the last two points of the third left leg is confined 

 to the proximal quarter of the penultimate joint. 



23. Palaemon sundaicus, Heller 

 Ortmann, Zool. Jahrb. Syst. v, p. 719 (1891). 



Kuala Mabek, Jalor. 



Ten specimens. All small, except one which measures 57 mm. including 

 the rostrum, and which is precisely similar to the smaller specimens except for 

 a certain amount of pubescence on the carpus, the hand, and especially the 

 fingers. 



24. Alpheus brevirostris, Olivier 



de Man, Mergui Crust., p. 261 (1888). 



One specimen. Patani Bay. 



