ON THE BRACK YUEOUS DECAPODS OF THE CAPE. 
61 
before, and some minute tubercles behind. The margin of the orbit is also tuberculated, four 
of the tubercles becoming almost teeth. The margin of the two middle lobes of the four-lobed 
clypeus has six tubercles for each. The fore-feet are one larger than the other. Both are 
almost smooth, although the smaller presents some vestiges of tubercles. The digits of the 
chelae are black; those of the larger hand have three teeth above and below; those of the lesser 
hand being almost without teeth. The feet are without spots or tubercles, but are very hispid. 
The length is two inches. The abdomen of the female has seven joints. 
The two foregoing species of Eriphia both come close to their congeners, the Gegarcinus 
hirtipes of Lamarck, and the Eriphia Icevimana of Milne Edwards. But these last species are 
natives of the Isle of France. 
Sub-genus. Curtonotus, Dehaan. 
Sp. 11. ( ) Curtonotus vestitus, Dehaan. 
Curtonotus vestitus , Faun. Jap. tab. 5. fig. 3. 
This last groupe appears to be the same as that which is named Pseudorhombida by Milne 
Edwards. 
Fam. PORTUNIDiE, Mihi. 
Sub-genus. Achelous, Dehaan. 
Sp. 12. ( ) Achelous crassimanus, n. s. 
Descr. Achelous testa glabra regionibus distinctis lateribus antice dentatis, clypeo scxdentato, 
orbitis subtus unidentatis, manibus articulo tertio intus tridentato extus bidentato, quarto 
supra ad apicem bidentato adque basin unidentato. 
Note. This large crab has a shell which is about five inches long by seven wide. The teeth of 
the cephalothorax are triangular, sharp, and nearly equal. The fore feet are nearly equal in size. 
The abdomen of male has seven joints. It has been only known, as yet, to occur in deep 
holes, which it makes in the mud islands near the mouth of the Zwartkops River, — islands that 
are only visible at low water. 
Sub-genus. Ciiarybdis, Dehaan. 
Sp. 13. ( ) Charybdis Smithii, n. s. 
Descr. Charybdis testa glabra, regionibus indistinctis, lateribus antice sexdentatis, clypeo 
8-dentato, orbitis baud dentatis, manibus articulo secundo intus tridentato, quarto supra 
bidentato intus et extus lineis tribus granulatis longitudinaliter carinato, digitis sulcatis. 
Note. Although I have here placed Charybdis as a sub-genus, I suspect that when the family 
Portunidce is worked out, it will be found that the Charybdis of Dehaan is only a section of 
some sub-genus of the genus Porturdnus. M. Dehaan is here splitting very fine ; for between 
the groupes named by him Oceanus, Charybdis, and Thalamita, the differences are very 
minute. Our crab comes between Oceanus crucifer of Dehaan and his Charybdis 6-dentatus. 
The cephalothorax has no transverse granulated lines like the latter, nor are the teeth of the 
clypeus blunt like those of Oceanus crucifer. The six teeth of the anterior lateral margin are 
