56 



p. 143: Riseo, Hist. Kat. Enr. Mend. Vol. V. p. 22 : LRtreille, in Cnvier Regne An. ed. 2, 1829, p. 59 : Milne Ed- 

 wards, Hist. Nat. Crust., I. 325 : Dana, U. S. Expl. Exp. Crust, pt. I. p. 78 : Bell, British Stalk-eyed Crnst. p. 39 : 

 Miers, Joarn. Linn. Soc, Zool., Vol. XIV. 1879, p. 655 : Alcock, J. A. S. B., Vol. LXIV. pt. 2, 1895, p. 238. 



Carapace piriform, with the regions indistinct, the surface closely granular 

 or spinular, and the lateral borders usually armed with large spines. The rost- 

 rum consists of two rather short, straight, divergent spines. The basal joint of 

 the antennge is broad, and has both the antero-external and antero-internal angle 

 produced to form spines : the mobile portion of the antenna, which appears to 

 spring from within the orbit, is completely exposed. The eye-stalks are long 

 and curved, and bear the cornea chiefly on their ventral surface. The orbit is 

 formed by a prominent supra-ocular eave which has its postero-external angle 

 produced, by a sharp post-ocular spine, and by another spine between these two : 

 the eyes are completely concealed from dorsal view when retracted. The exter- 

 nal maxilhpeds have the merus as broad as the ischium, the palp being attached 

 to the antero-internal angle of the merus. 



The chelipeds are slender, with cylindrical joints and styliform fingers. 

 The ambulatory legs decrease very gradually in length : the first pair are not 

 much longer than the carapace and rostrum : the dactyli of all are styliform. 



The abdomen in both sexes consists of seven distinct segments. 



■^t>' 



Mala gibba, Alcock. 



Maia gibha, Alcock, J. A. S. B. Vol. LXIV. pt. 2, 1895, p. 239, pi. iv. fig. 5 : 111. Zool. InTestigator, Crnst. pi. 

 xxi. Sgs 5, 5a. 



Very near Maia miersii. Walker (J. L. S., Zool., Vol. XX. 1890, p. 113, pi. 

 vi. figs. 1-3). 



Distinguished (1) by the globose inflation of the posterior (branchiostegal) 

 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 (<?) to seven-eighths (?) 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 la- 

 teral borders. 



The rostrum, which, like the anterior part of the carapace, is somewhat 

 declivous, ends in two acute divergent hairy spines, which in the male are about 

 one sixth, in the female about one-eighth, the rest of the carapace in length. 

 The eyes and orbits are just as in M. squinado (with specimens of which this 

 species has been compared), only the cornea is relatively very much larger and 

 almost entirely ventral in the present species, and the spine between the spine of 

 the pre-orbital-hood and the post-orbital spine is nearly as large as either of these. 



