98 



Postero-lateral margins of carapace keeled and granulate, con- 

 tinued till bases of penultimate pair of legs. Chela (of d) 



smooth and naked, movable finger compressed. Meropodites 



of walking legs not at all or slightly fringed Ps. rrassiis A. Milne-Edwards 



;,. Lateral margins of carapace subparallel in their posterior half. 



Two distinct epigastric lobes behind the front. Chela (of cT) 



with a small tuft of hairs filling the gap between the fingers, 



inner surface naked Ps. aHms Stimpson 



Lateral margins of carapace distinctly converging backward 



in their posterior half No epigastric lobes. Chela (of cf ) with 



a tuft of hairs at inner surface 4 



4. Antero-lateral teeth of carapace rather distinct, flattened. 



Front not prominent Ps. cryf/iracits Kossmann ') 



Antero-lateral teeth of carapace scarcely indicated. Front 



laminar, |)rominent Ps. laiiigcj' n. sp. 



I . Pseudograpsns crassus A Milne-Edwards. 



1 868. Pseudograpsns crassus A. Milne-Edwaids. Xouv. Arch. Mus. Paris, t. 4, p. 176, pi. 26, 



f. 6—10. 

 1892. Pseudograpsns crassus de Man. Weber's zool. Erg. Reise niederl. Ost-Indicn, Bd 2, 



P- 317- 

 1902. Pseudograpsns crassus de Man. Abhandl. Senckenb. Gesellsch., Bd 25, Heft 3, p. 506. 



Stat. 131. Karakelang, Talaut Islands. 5 cf > 3 9- 



Of this species a sufficient description is given by Milxe-Edwards, but a few additional 

 remarks may not be superfluous. The carapace is punctate, but the lateral and anterior margins 

 are granulate ; these granules are large and disposed in a single row along the sharply-keeled 

 lateral margins, behind the epibranchial teeth, but for the rest they form a narrow- stripe of 

 irregularly-arranged and smaller granules ; the anterior border of the front and the supra-orbital 

 borders are much thickened. Infra-orbital border deeply fissured, but the orbit is closed beneath 

 by a long crenulate crest, parting inwardly from the epistome, as in Ps. scfosus. The auricle 

 at the external angle of the merus of the external maxillipeds is distinctly present, but does 

 not extend much sideways, the anterior margin has a deep notch in the middle, at the outer 

 part ot which the carpus is inserted; the exognath is somewhat narrower than half the width 

 of the ischium. 



The meropodites of the chelipeds, that are ver)- stout and subequal in the S , are 



entirely unarmed, somewhat granulate at the inner margin, near which a deep fissure runs 



alongside m which long hairs are implanted; the wrist is broader than lon^ in dorsal view, 



... ' ^ 



with the inner angle subrectangular and slightly depressed; the palm is very high, longer than 



I) L. c. p. 61, pi. 1, f. 5, pi. 3, f. 14—15: Hetcrogiapsiis ervlhraciis Ortmann. Denkschr. med.-naturw. Gesellsch. lena. P.d S, 

 1894, p. 55- 



98 



