EBALIA BRYERII. 145 



DEC A POD A . LEUCOSIADM. 



BRACHYURA. 



BEYER'S EBALIA. 

 Ebalia Bryerii. LEACH. 



diameter. Carapace slightly and minutely granulated ; lateral margin 

 t-iitire, somewhat re volute at the angles ; two tubercles on the cardiac region, 

 and one on each of the branchial in the male ; these parts very tumid in the 

 female. Abdomen in the male with the third to the fifth joints united ; in the 

 female, the fourth to the sixth. Arm not more than twice as long as it is broad. 



(:< nicer tumcfuctiis, MONT. Trans. Linn. Soc. IX. p. 86. t. ii. fig. 3. 



(fcem. auct.) 

 ia Brycrii, LEACH, Mai. Podoph. Brit. t. xxv. figs. 12, 13. 



THE carapace in the male is somewhat flattened, de- 

 pressed in the centre, and transversely hollowed imme- 

 diately behind the front, which is considerably raised, and 

 slightly emarginate. The branchial regions and the car- 

 diac region are raised, the elevations in the male being 

 distinct, in the female so tumid as to form a general eleva- 

 tion of the whole of the posterior two-thirds of the cara- 

 pace, abruptly sloping to the margin, which is turned up 

 at the sides. The orbits are very small, and the fissures in 

 their superior margin indistinct. The surface is minutely 

 and almost obsoletely granulated. The arm in the male 

 is less than twice as long as it is broad, with a projection 

 on the inner side, and furnished on each edge with a few 



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