AMPHIPODA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. SES 
These specimens agree closely with the description and figures given by STEBBING in 
his Challenger Report. 
The species is known from the warm waters of the Pacific and the Atlantic Oceans. 
It is perhaps not distinct from Synopia ultramarima Dana, with which it is united by 
Deis VALLE. 
Genus Hyate H. Rathke, 1837. 
Alyale grimaldw Chevreux. 
Hyale grimaldit Chevreux, 1891, p. 257, figs. 1-5, and 1900, p. 10, pl. ii. fig. 2. 
” ” Stebbing, 1906, p- 567. 
St Vincent, Station 24; among seaweed on shore. Ist December 1902. One 
male and one female; the male 3 mm. long. 
Although these specimens are too small for certain identification, | think they must 
belong to this species. The gnathopoda of the male agree well with Cunvrevx’s descrip- 
tion, having the flange on the side of the basal joint, as described, and the propod is of 
the same shape, though the rounded lobe on the palm near the base of the finger is not 
so well marked. The lower antenne are hardly so stout as shown in CHEVREUX’S figure. 
The species was previously known from the North Atlantic. 
Genus ALLORCHESTES Dana, 1849. 
Allorchestes plunucorms (Heller). 
Nicea plumicornis Heller, 1866, p. 5, pl. i. figs. 8 and 9. 
Allorchestes plumicornis Stebbing, 1906, p. 583. 
3 , Walker, 1901, p. 299, pl. xxvii. figs. 20 and 21. 
- 5 Chevreux, 1911, p. 241, pl. xvii. figs. 1-3. 
St Vincent, Station 24; north-east beach. 1st December 1902. Four small 
specimens, 
There is no fully developed male among these specimens, but from the characters of 
the females I think they must belong to this species. The largest is probably immature, 
as the upper antenne have only eleven joints in the flagellum and the lower fourteen; 
about half the joints in the latter bear tufts of long sensory setze, the tufts decreasing in 
size distally ; there is also a tuft on the distal end of the last joint of the peduncle, but 
none on the other parts of the peduncle. The second gnathopod agrees well with 
Watker’s figure ; the dacty] of all the pereeopoda bears the prominent setule on the inner 
margin, and in the remaining characters the specimens agree well with the descriptions 
given by SreBBING and CHEVREUX. 
The species is well known from various parts of the Mediterranean, but does not 
appear to have been recorded from St Vincent. 
