728 MR. W. F. LAtfCHESTER ON" CRUSTACEANS [.Time 19, 



extends under the antero-lateral margins. Chelipedes three times 

 as long as the body, and generally quite smooth above and below, 

 except for — (a) a longitudinal line of granules on the upper 

 surface of the arm, not quite reaching its distal extremity ; the 

 most proximal of these is produced into a very strong tooth ; (b) a 

 similar, more obscure line on the under surfaces of the wrist and 

 hand ; the distal third of this surface iu the hand is rather swollen, 

 and the linear arrangement of the granules is here rather broken 

 up. The whole of the inferior margin of the arm and hand is set 

 with evenly disposed sharp tubercles, which in the wrist are 

 granular (in the male they are less sharp than in the smaller 

 female) ; on the posterior margin of the arm five strong teeth, 

 with smaller ones between them ; on the anterior margin a similar 

 arrangement, the teeth being, however, less strong and more 

 numerous ; two strong teeth on the hind margin of the wrist ; 

 both upper margins of hand dentate, the teeth being much stronger 

 in its distal third. Dactyl with upper margin dentate ; both 

 fingers with strong tubercular teeth on the inner margins ; these 

 margins do not meet, except at the tips. Ambulatory legs with 

 mero- carpo- and pro-podites strongly carinated above ; and with 

 meri spinulose below, strongly on the 1st and 4th pairs, very 

 obscurely on the 2nd and 3rd. 



Length (base of posterior spine to tip J . $ . 



of rostrum) 25*5 mm. 20 mm. 



Breadth (between 7th and 8th antero- 

 lateral spines) 28 „ 22*5 „ 



Length of chelipedes 76 „ 59*5 „ 



This species is most nearly related to L. validus and L. laciniatus, 

 from both of which it is distinguishable by its relative smoothness, 

 and the fact that it is not so very much broader than long. 



XIII. Genus Cryptopodia M.-Edw. 



22. Cryptopodia fornicata Fabr. 



Cancer fomicatus, Fabr. Ent. Syst. t. ii. p. 453 (1781); Herbst, 

 Naturgesch. d. Krab. Bd. i. Hft. 6, p. 204, pi. xiii. ff. 79-80 (1785). 



Cryptopodia fornicata, M.-Edw. Hist. Nat. Crust, t. i. p. 362 

 (1834) ; de Haan, Crust. Japon. p. 90, pi. xx. f. 2 (1839); Hasw. 

 Cat. Austr. Crust, p. 37 (1882) ; Walker, Journ. Linn. Soc., Zool. 

 vol. xx. p. 109 (1887) ; Hend. Trans. Linn. Soc, Zool. vol. v. p. 351 

 (1893). 



Bab. Singapore. A male. 



Dim. 22X13. 



XIV. Genus Harrovia White. 



23. Harrovia albolineata Ad. & White. 



Harrovia albolineata, Ad. & White, ' Samarang ' Crust, pp. 55-56, 

 pi. xii. f. 5 (1848). 



