72 Annals of the SoutJi African Nuscum. 



the specific name alludes. The finger is widely arched, and from 

 its hinge the margin of the hand extends very obliquely to the 

 widely projecting thumb, numerous setules lining the margin and 

 resting on a membranaceous finely ribbed extension of the border. 

 The small wrist has some little serrate spines at its inner corner, 

 and a few of similar character are on the margin of the hand 

 behind the thumb ; otherwise these limbs are singularly devoid of 

 any plumage, such as abundantly adorns the third maxillipeds 

 and the much slighter second peraeopods. In the latter the hand 

 is very insignificant, the feeble fingers much longer than the palm, 

 which is not longer than its breadth. The telson is about three 

 and a half times as long as its greatest breadth, tapering evenly 

 almost to a point, but with a truncate apex just broad enough for 

 a stout terminal spine, with a pair of much longer and more slender 

 spines inserted in the margins just above it. The rami of the 

 uropods are subequal in length to one another and to the telson, 

 though from the manner of insertion the inner branch extends a 

 little beyond the outer, and a little further still beyond the telson ; 

 the outer ramus is squarely truncate, its outer margin ending in 

 a very small tooth on a level with the apical border. 



The total length was 20 mm., of which the telson occupied 3 mm., 

 a greater length than that of the sixth pleon segment. 



Localities. Cove Rock NE. 2 miles ; depth 25 fathoms (near 

 East London). A 1317. And 33 13' S., 27 39' E. ; depth 37 fathoms. 

 A 1316. 



FAMILY PALAEMONIDAE. 



This family has been already considered in these Annals, vol. 6, 

 part 1, p. 39, vol. 6, part 4, p. 383, and vol. 15, part 1, p. 30. In the 

 first notice the new generic name Macroterocheir is proposed in 

 place of Ortmann's subgenus Macrobrachinm ; in the second (a 

 General Catalogue of South African Crustacea) five genera of the 

 family are noted, these being, besides that just named, Palaemon, 

 Enpalaemon, Parapalaemon, and Leandcr, but the species there 

 named Leandcr squilla (Linn.) should, I think, rather be called 

 L. affinis (Milne Edwards), and the result of raising Ortmann's 

 subgenus Eupalaemon to generic rank is to make that name a 

 synonym of Palaemon, Fabricius, sensu strictiore. Palaemon qnoianus, 

 Milne-Edwards, can no longer stand under Palaemon thus limited, 

 and perhaps belongs to Leander. The characters of Palaemon as 

 restricted by Ortmann have been very fully set out by de Man 

 in 1892 and Coutiere in 1905. 



