NORTH SIDE OF THE BAY OF BISCAY IN AUGUST, 1906. 411 



C. Gordoni was not previously known to the south of the Britisli 

 Isles, and hitherto had not been trawled in depths exceeding 200 

 fathoms. 



Processid^. 



Processa canaliculata, Leach. 

 Station II. 75 fathoms. Two, 26 and 30 mm. 

 ,, Y. 109 fathoms. Seventy -six, 21-50 mm. 



Two of the specimens have abnormal eyes. The cornea on one 

 side is well developed and of the usual size, whereas that on the other 

 side is much smaller with, in one case, a curious swelling on the inner 

 face of the stalk. The rostrum of the latter specimen is also unusually 

 short, and is not furnished with its full complement of sette. 



Pal.^monid^. 

 Periclimenes Korni? Lo Bianco. 



Station XIII. 412 fathoms. Fragment. 



The rostrum of this specimen is broken off at the base, and the 

 whole of the abdomen is missing. This is particularly unfortunate, for 

 the specimen is, as far as I am aware, the only deep-water Palaemonid 

 which has been found in the North-East Atlantic. It appears to be 

 most closely allied to the imperfectly described Periclimenes (Anchistia) 

 Komi (Lo Bianco),* found near Capri in about 600 fathoms, but is 

 considerably larger and differs from the Italian author's figure in the 

 lengths of various segments of the pereiopods. 



The carapace measures 7 mm. from the back of the orbit to the 

 hinder margin of the carapace ; it is therefore probable that the 

 specimen was originally more than twice as long as the types of 

 P. Korni, which were only 13-15 mm. in total length. 



The rostrum is broken, but four dorsal teeth are present on the 

 anterior third of the carapace behind the orbital notch. The dorsal 

 carina is clear and distinct for three-quarters the length of the cara- 

 pace, fading away further back. Both hepatic and antennal spines are 

 present. The eyes are deeply pigmented and the cornea is wider than 

 the stalk. The outer antennular flagellum is split into two rami, the 

 inner one (which is also the thicker) being slightly longer than the 

 fused basal part. The lamellar portion of the antennal scale is 

 produced acutely at its inner distal angle, and reaches considerably 

 beyond the stout spine which terminates the straight outer margin. 



The first pair of pereiopods reaches beyond the apex of the 

 antennal scale by the whole length of the propodus ; the merus and 



* Lo Bianco. Mltf. Zoo. Stat. Neaj^cJ, 1903, p. 250, tav. 7, fig. 1-3. 



