Carcinological Fauna of India. 239 



Maia spinigera, de H. 



Maia spinigera, de Haan, Faun. Japon. Crust., p. 93, pi. xxiv. fig. 4. 

 Maia spinigera, Adams and White, ' Samarang' Crustacea, p. 15. 

 Maia spinigera, Dana, U. S. Expl. Exped. Crust., pt I. p. 85. 

 Maia spinigera, Ortmann, Zool. Jahrb. Syst. &c, VII. 1893, p. 51. 



Carapace armed with long spines along the antero-lateral borders, 

 down the median line, and in an oblique series on either branchial 

 region joining the median to the antero-lateral series. Excluding the 

 pre-ocular and post-ocular spines and the spines between them, there 

 are four large spines on the antero-lateral border : and there are three 

 large spines in an oblique series on either branchial region. In the 

 middle line of the carapace there are in the gastric region two spines, 

 in the anterior cardiac one, in the post-cardiac one, in the intestinal one, 

 and on the posterior border a pair. Between these large spines the sur- 

 face of the carapace is sharply, finely, and evenly granular. 



The rostrum consists of two moderately divergent spines, the leno-th 

 of which is about one-fourth that of the carapace. 



The chelipeds are smooth and very slender, and are rather shorter 

 than the 2nd pair of trunk-legs : the latter, which are the longest of all 

 are about one-sixth longer than the carapace and rostrum. The merus 

 of all the ambulatory legs has a strong spine at the distal end of its 

 upper border : all the joints of all the ambulatory legs are covered with 

 long hairs. 



In the Museum collection is a single specimen from the coast of 

 Beluchistan. 



Maia gibba, n. sp. Plate IV. fig. 5. 



Very near Maia miersii, "Walker (J. L. S., Zool., Vol. XX. 1890 

 p. 133, pi. vi. figs. 3-3. 



Distinguished (1) by the globose inflation of the posterior (branchi- 

 ostegal) part of the closely and crisply tubercular carapace, and by the 

 corresponding declivity of the anterior part, giving the animal a hunch- 

 backed appearance ; ( 2) by the absence of large marginal spines on the 

 carapace. 



Carapace remarkably swollen in its posterior part, where its 

 greatest breadth is from about three-fourths ( c?) to seven-eighths 

 ( 9 ) its extreme length with the rostrum ; and closely covered with 

 sharp piliferous tubercles, which, in the male, but hardly in the female 

 become spinular in the middle line and along the lateral borders. 



The rostrum, which, like the anterior part of the carapace, is some- 

 what declivous, ends in two acute divergent hairy spines, which in the 

 85 



