226 PEOFESSOR CHARLES CHILTON ON THE 



carinate teeth on the pleon and urus. Della Valle in 1893 united both these two 

 species and several others under the name Atylus swammerdamii (Milne Edwards). 



The southern species is known from Australia and South Africa. 



Another species which appears to belong to this genus was described in 1862 by 

 Spence Bate under the name Atylus villosus, from specimens obtained at Hermit 

 Island in the South Atlantic by the Antarctic Expedition under Sir James Clarke Ross. 



Genus Talorchestia. 



Talorchestia scutigerula (Dana). 



Orehestia scutigerula Dana, 1853 and 1855, p. 863, pi. Iviii. fig. 2. 



,, „ Spence Bate, 1862, p. 26, pi. iv. fig. 7. 



Talorchestia scutigerula Stebbing, 1906, p. 545. 



Falkland Islands, near Port Stanley, Station 118 ; from banks of a fresh-water, 

 peaty stream. 7th January 1903. Two males and three females, the 

 largest male 15 mm. in length. 



These specimens agree veiy well with the description as given in Das Tierreich 

 Amphipoda. The large expansion on the second joint of the fifth perseopod is very 

 striking, and is very similar to the expansion on the fifth joint in Talorchestia telluris 

 (Bate). 



The species is known from Tierra del Fuego as well as from the Falkland Islands, 

 and it was taken at Hermit Island in the South Atlantic, during the Antarctic 

 Expedition under Sir J. C. Ross in 1840. 



Genus Hyale. 



Hyale grandicornis (Kroyer). 



Orehestia grandicornis Kroyer, 1845, p. 292, pi. i. fig. 2 a-n.. 



Allorchestes verticillata and A. peruviana Dana, 1855, p. 886, pi. Ix. figs. 2 and 3. 



Hyale grandicornis Stebbing, 1906, p. 566. 



Gough Island, Station 461 ; shore. One male, 12 mm. long. 



I refer this specimen to Kroyer's species without much doubt. It agrees minutely 

 with the description of all its characters given by Stebbing in Das Tierreich, particu- 

 larly in the pectination of the finger of the perseopoda ; the setule on the finger is rather 

 long and fairly distinct, but not strong. The hind margin of the basal joint of the fourth 

 perseopod is furnished with small spinules as described, but they are very small, and they 

 are also present, though not in quite such numbers, in the third and fifth perseopoda. 

 Both the first and the second gnathopoda agree very closely with the description. 



This species was described originally from Valparaiso, and H. novw-zecdandiae 

 (G. M. Thomson), which is found in New Zealand itself and in the sub-Antarctic islands 

 lying to the south of it, appears to be almost the same. 



(ROY. SOC. EDIN. TRANS., VOL. XLVIII., 508.) 



