L48 A. Alcock — Careinolotjical Fauna of India. [No 3, 



73. Actsea foswlata (Girard) A. M. Edw. 



Cancer fossulatus, Girard, Ann. Soc. Entom. France (3) VII. 1859, p. 149, pi. iv. 

 figs. 2-26. 



Actxa schmardx, Heller, Abh. zool.-bot. Ges. Wien, 1861, p. 6 and SB. Ak. 

 Wien, XLIII. 1861, p. 318, pi. i. fig. 13. 



Actxa fossulata, A. Milne Edwards, Nouv. Archiv. du Mas. I. 1865, p. 279, and 

 IV. 1868, p. 71 : Richters iu Mobius Meeresf. Maurit. p. 145. 



Psaumis fossulata, Kossmann, Reise roth. Meer., Crust, p. 27, pi. i. fig 3. 



Closely resembles Actsea cavipes, but has the following difference: — 



(1) the front projects far beyond the inner angle of the orbit : 



(2) the lobes of the carapace have their convexity distinct but 

 boundaries somewhat indistinct ; and in addition to being granular, 

 they are deeply pitted, and this gives the whole carapace a worm-eaten 

 look: 



(3) the antero- lateral borders are four-lobed, but the first lobe is 

 very indistinct, and the lobes are marked with rather large pits : 



(4) the upper edge of the hand is bluntly crested and the neighbour- 

 ing surface is pitted rather than eroded : 



(5) the crest of the carpal joints of the legs do not only meet at 

 their ends, but are also more or less completely joined across the middle 

 by dissepiments, so that instead of enclosing a single trough they form 

 at least two irregular cup-like cavities. 



In the Indian Museum are two specimens from Great Coco I. 

 (Andamans), and East I., Andamaus. 



74. Addsa nodulosa, White. 



Actxa nodulosa, White, P. Z. S. 1847, p. 224 : Ann. Mag. Nat. Hist. (2) II, 1848, 

 p, 224; and Adams and White, Samarang Crust, p. 39, pi. viii. fig. 4 : A.Milne 

 Edwards, in Maillard's 1'ile Reunion, Annexe F, p. 5 ; and Nouv. Archiv. du Mas. 

 I. 1865, p. 277 : Miers, Challenger Brachyura, p. 120 : Henderson, Trans. Linn. Soc, 

 Zool., (2) V. 1893, p. 356. 



Carapace f ns long as broad, much subdivided by smooth well cut 

 grooves into numerous small lobules. These lobules are rather irregular- 

 ly studded with pearly tubercles and granules, the slight irregularity 

 in size and distribution of which gives the lobules themselves a some- 

 what irregular look. On several of the lobules of the gastric cardiac 

 and branchial regions are, sometimes, symmetrically disposed tussocks 

 of long coarse whitish hair. 



The obliquely deflexed front is sharply four-lobed or four-toothed, 

 the outer lobe on either side (standing at the orbital angle) being small. 

 The beaded supra-orbital margin is broadly fissured twice and is 

 separated from the infra-orbital margin by a fissure. The antero- 



