Crustacea Decapoda and Stomatopoda. 229 



A single female with carapace gj mm. in breadth was obtained by Dr. Annandale 

 at the edge of the Whangpoo R., 5 to 10 miles below Shanghai. It was found in a 

 burrow above the water-line in mud which was rapidly hardening. The water in 

 the river at the point where the specimen was taken is quite fresh at all seasons. 



The species is readily distinguished from T. stapletoni, de Man, by the characters 

 given by Miss Rathbun ; it has been recorded from Shanghai, where the type speci- 

 mens were obtained, and from Korea. 



Subfamily MACROPHTHALMINAE. 



Genus Camptandrium, Stimpson. 



Camptandrium sexdentatum, Stimpson. 



1907. Camptandrium sexdentatum, Stimpson, Smiths. Misc. Coll., XLIX, p. 138, pi. xvii, fig. 4. 

 1915. Camptandrium sexdentatum, Kemp, Mem. Ind. Mtis., V, p. 236, pi. xii, fig. 6. 

 igi8. Camptandrium sexdentatum, Tesch, Decap. Brachyur. ' Siboga '-Exped., I, p 65, pi. v, 

 fig- 3- 



Dr. Tesch has recently redescribed this species. In the account which I pub- 

 lished in 1915 I placed the genus in the Grapsidae and in the subfamily Varuninae, 

 being under the impression that it was remotely allied to Eriocheir. Dr. Tesch, who 

 has had the advantage of examining an adult male, considers that it belongs to the 

 Ocypodidae and to the subfamily Macrophthalminae and is not distantly related to 

 Paracleistostoma. With this view I concur. 



Two females of this rare species, with carapace y 2 and 67 mm. in breadth, were 

 found by Dr. Annandale in the Tale Sap. They are a trifle smaller than the dead 

 female found in the Chilka I^ake {v. Kemp, loc. cit.. text-fig. 13) ; the sculpture of the 

 carapace is crisper, the transverse ridge on the branchial and cardiac regions being 

 more sharply defined and the antero-lateral teeth more prominent. 



The specimens were found in the channel opposite Singgora on a bottom of mud 

 and dead shells at a depth of 4^ metres and in the middle of the outer lake, N. of Koh 

 Yaw, on a bottom of sticky mud at a depth of 2| metres. The specific gravit}^ 

 of the water in the former locality was 1-00625 and in the latter 10035 (corrected). 



The species has been recorded from Hong Kong (Stimpson), the Bay of Batavia 

 (Tesch), the Chilka Lake, Orissa (Kemp) and Bnnur backwater, Madras (Kemp). 



Family GRAPSIDAE. 



Subfamily GRAPSINAE. 



Genus G rap sus, Lamarck. 



Grapsus strigosus, (Herbst). 



1900. Grapsus strigosus, Alcock, Journ. Asiat. Sac. Bengal, L,XIX, p. 393. 



A single dead specimen with carapace 34 mm. in breadth was found at the mouth 

 of the Tale Sap. The species is probably not an inhabitant of the lake. 



