Glass. 5s) PISCES: 
Sub-class 1. PALAZICHTH VES. 
Order 1. CHONDROPTERYGII. 
Sub-order PLAGIOSTOMATA. 
Division SELACHOIDEI. 
Family CARCHARIIDA. 
1. Carcharias glaucus (Z.). Blue Shark. 
Has frequently been caught off Whitby, and occasionally off 
other parts of the coast. 
2 Galeus canis Bonxap. Common Tope. 
This species is reported to us as migrating from the shore to 
the open sea. It is common at Scarborough and in Brid- 
lington Bay, but is not reported from other localities. 
3. Zygeena malleus (Asso). Hammer-headed Shark. 
4. Mustelus vulgaris JZi/. & Henle. Smooth Hound. 
Common in Bridlington Bay and off Scarborough. Not 
reported elsewhere. 
Fam. LAMNIDZ., 
5. Lamna cornubica (Gm.). Porbeagle. 
Occasional visitant, has been caught off Scarborough and 
Whitby. This species is described by some authors under 
the name of ‘ Beaumaris Shark.’ 
