128 



FASCICULI MALATENSES 



I am not aware that the association of this species with medusae has been 

 previously noted, and the discovery is of interest. Seeing to what a large 

 size N. pelagicus grows the association can only be temporary, and it would be 

 interesting to know if it is only accidental in these cases, or, as is more probable, 

 a regular phenomenon bound up with some particular purpose. 



5. Neptunus sanguinolentus, Herbst. 

 Alcock, J.A.S.B., vol. Ixviii, pt. 2, p. 33 (1899). 



1 $ . Patani Bay. 



6. Charybdis (Goniosoma) callianassa, Herbst. 

 Alcock, J.A.S.B., vol. Ixviii, pt. 2, p. 57 (1899). 



1 $ . Patani Bay. 



7. Thalamita danae var. stimpsoni, A.M.E. 

 Alcock, J.A.S.B., vol. Ixviii, pt. 2, p. 79 (1899). 



1 young $ . i\ mile E.S.E. of Cape Patani. 10 fath. 

 ' Clayey mud with much shelly debris.' 



8. Myomenippe granulosa, A. M. Edw. 

 de Man, Mergui Crust., pi. ii, fig. i, p. 40 (1888). 



Patani Bay. 



One with a small Balanus concavus on the carapace. 



0. Scylla serrata, Forskal. 

 Haswell, Cat. Austr. Crust., p. 79 (1882). 



Patani Bay. 



One large male. 



10. Potamon (Potamon) pealianum, Wood-Mason 



J.A.S.B., vol. xl, pt. 14, fig. 7, p. 204 (1871). 



Bukit Besar. 2,500 feet. 

 Three adult males and three adult females. 

 Three young males and two young females. 



'From small jungle stream.' 



The spines and rugosities are generally less marked in these specimens 

 than in the type. In the young examples the short hairs on the carapace are 

 sufficiently dense to appear almost as a pubescence, and the joints of the legs 

 are banded dark on a lighter background. 



