REPORT ON THE AMPHIPODA. 685 



third joint dilated centrally and produced downwards behind, with set« on both margins 

 and spines on the front one ; the fourth joint short, dilated below ; the fifth joint much 

 longer and narrower, both with groups of spines in front ; the finger curved, clean-edged, 

 but at the forward-bulging curve just below the hinge microscopically furred. 



The Fourth and Fifth Perseopods are similar to the third, but with the various joints 

 more elongate, the first joint in each being outdrawn downwards, narrowly in the 

 fourth and more broadly in the fifth pair. 



Pleopods. — The coupling spines, examined only in a small specimen, had two lateral 

 teeth and a small one at the apex ; the number of the cleft spines was not ascertained. 



Uropods. — The first pair extend back some way beyond the other two pairs ; they 

 have the peduncles longer than the rami, carrying a few curved spines, and are, like the 

 whole group of these uropods, finely ciliated on the edges ; the rami are straight, 

 slender, edged with spines, equal in length, the tips scarcely curved ; of the second pair 

 the peduncles are equal to the longer of the two rami, which are slender and very 

 slio-htly curved ; the peduncles of the third pair are longer than the rami, and have spines 

 on the outer and plumose setae on the inner of their upper edges ; of the rami, which are 

 broadly lanceolate, the outer is rather the longer, both have long plumose setae on the 

 inner edges, the inner also some spines on its outer edge. 



Telson short, not very much longer than broad, reaching but a little way down the 

 peduncles of the third uropods, not much contracted distally, the distal end squared, 

 broken by a gaping notch measuring not one-fifth of the total length of the telson ; on 

 either side just above the level of the top of the notch is a small spine, above this again 

 a small and a larger feathered seta. 



Length. — Specimen A measured, in the position figured, from the forehead to the 

 end of the second segment of the pleon, two fifths of an inch, so that the total length of 

 this, which was not the largest specimen, would be nearly three-fifths of an inch. 



Locality. — Simon's Bay, Cape of Good Hope; depth, 18 fathoms. 



RemarJcs. — The account which Stimpson gives of his Anonyx variegatus is as follows : 

 — " Large, slightly compressed ; back rounded, smooth and glossy, with a sinus at the 

 abdomen. Antennae about equal in length, the superior ones thickened to the origin of 

 the accessory fiagellum, which is short and hair-like, equal in size with the true flagellum. 

 Eyes large, black, reniform. First pair of legs with an elongated, tapering hand and a 

 minute finger; basal joints of the posterior pairs smooth. Caudal stylets elongated and 

 slender. Colour yellowish mottled with brown, with scattered white dots. Length, 

 •08 inch. On sandy bottoms in the circumlittoral zone. Hab. Cape of Good Hope, at 

 Simon's Bay." 



Spence Bate gives the length of the specimen sent him by Stimpson as " about ^ths 

 of an inch," in other words, about three-fifths of an inch. Since Stimpson himself 



