322 



Notes on Centrina Salviani. 



By 



W. li. Calclerwood, 



Director of the Laboratory. 



With Plate XIII. 



Two specimens of this Elasmobranch have recently been landed 

 at Plymouth, the one on the 21st of June, and the other on the 8th 

 of July. They were both captured by steam trawlers working off 

 Vigo Bay on the north-west coast of Spain. The specimens cannot, 

 therefore, be claimed as English ; but since only one example appears 

 to have been previously landed in this country, having been taken 

 off the coast of Cornwall in 1877; and since the fish is, therefore, not 

 at all well known, a few notes on the two specimens brought to the 

 Laboratory may be of interest. 



In looking up the literature on this fish I do not find a drawing 

 which gives a satisfactory idea of its appearance. I have, therefore, 

 attempted to represent one of the specimens in question by an 

 accompanying figure. 



The following measurements will also help to give a compre- 

 hensive idea of the proportions : 



Extreme length . . . . . .31 inches. 



Extreme breadth of flat ventral surface . . 5^ „ 



Breadth of mouth . . . . . 1^ „ 



Breadth between grooves on each side of mouth 2 ,, 

 Length from centre of spiracle to end of snout . 3 ,, 

 Longitudinal measurement of eye . . . 1-^ ,, 



„ „ spiracle . . f inch. 



„ „ gill-slits . . I ,, 



Length of abdominal cavity . . . .17 inches. 



Breadth ,, . . . . 4^ „ 



