23 



323 



Macro phthalmus crassipes Milne Edwards. 



Macrophthalmus crassipes Ortmann, Zool. Jahrb., Syst., X, 345, 1897. 



Shore outside the mangrove at the Station on Koh Chang; III. 11; 2 c?. 



Macrophthalmus convexus Stimpson. 



Plate II, fig. 3. 



Macrophthalmus convexus Alcock, LXIX, 378, 1900; Stimpson, Smithson. Misc. Coll., XLIX, 97, pi. XIII, 

 fif?. 2, 1907. 



Shore outside the mangrove at the Station on Koh Cliang; III. 11; 1 <?. 

 Macrophthalmus serratus White (?), Stimpson. 



Macrophthalmus serratus White (?) in Adam.s and White, Zool. Samarang, Crust., 51, 1848; Stimpson, 

 Smithson. Misc. Coll., XLIX, 96, pi. XIII, fig. 3, 1907. 



North of Koh Kong, 8 fath., mud bottom; I. 23; 1 <? 1 juv. Off Koh Kut, 6 

 fath.; I. 26; 2?. North of Koh Kut, 15 fath., mud; III. 4; 1 c?. Sound at Koh 

 Chang, 3—5 fath., soft clay bottom; 1900; 20 juv. 



Macrophthalmus erato de Man. 



Macrophthalmus erato Alcock, LXIX, 381, 1900. 



Koh Chang, stony coast at low water; I; 2 juv. Koh Kahdat, among algæ; 

 II. 19; 1 juv. 



Cleistostoma lingulatum Ralhbun. 



Cleistostoma lingulatum Rathbun, Proc. Biol. See. Washington, XXII, 108, 1909. 



Surface somewhat setose, setæ retaining mud. Carapace convex, finely sculp- 

 tured, regions slightly indicated fine frost-like granulation scattered over the sur- 

 face, the granules forming clumps 

 and thickened lines on the elevated 

 parts; lateral borders sinuous, forming 

 an obtuse angle at the anterior third 

 where the carapace is widest, and a 

 minute tooth at the anterior angle. 

 Below the postero-lateral margin there 

 is a subtriangular and nearly vertical 

 facet, not visible in a dorsal view. 

 Front between one-third and one- 

 fourth the greatest width of the cara- 

 pace, almost vertically deflexed, the vertical portion comprising two transverse, 

 oval, concave surfaces separated on the median line. Upper border of orbit more 

 oblique than in C. dotilli forme Alcock,' lower border spinulous. Above and parallel 

 to the posterior margin, a line of granules; intervening area smooth. 



1 Jour. Asiat. Soc. Bengal, LXIX, 373, 1900; Illus. Investigator, X, pi. LXIV, tig. 1. 



Fig. 7. Cleistostoma lingulatum, type 9, 4-5 mm. wide. 



