132 NATURAL HISTORY. 



The Small-Spotted Dog-Fish. Scyllium canicula. 



The local name of both the kinds of Scyllium, is "Nurse," 

 they are used as bait for prawn pots, &c. 



The Angel Fish. Squatina angelus. 



A large one, 4ft, Gin, in length, was tat en in Swanage 

 Bay last July, several of its young 10 inches long, 

 were also in the net, these were marbled on the upper 

 surface with white streakings, marks which are not 

 present in the adult fish; they are probably analo- 

 gous to similar white spots in the young of the allied 

 species, the Picked Dog-Fish and Smooth Hound, 

 vide Yarr: 11. 513. 



The additions to our list of Fishes, are 



The Black Goby. GoUus niger. Yarr: I. 281. 



One specimen in prawn pot, Swanage bay this May. 



The Sand Eel. Ammodytes Tohianus. Yarr: XL 424. 



Dug out of the sand at low spring tides with the Sand 

 Launce; the fishermen distinguish between the two 

 species, calling the former the "Brown-back Rig- 

 gle," the latter the "Green-back Riggle," from its 

 more transparent colour. 



The Common Sturgeon. Accipenser Sturio. Yarr: II. 475. 



A large one was taken in Studland Bay in September, by 

 Wliite, fisherman of Poole. 



The Common Tope. Galeus vulgaris. Yarr: 11. 509. 



Several large ones were taken in Swanage Bay, during 

 December. As the forms of the teeth of sharks are 

 always of importance in identifying the fossil remains 

 of the family, I may here notice that, in examining 

 the jaws of two large female specimens of this fish, I 

 found that, besides the usual form of teeth, viz: those 

 obliquely triangular, and denticulated on the outer 

 edge alone (see fig. Yarr: II, p. 510,) there is a second 

 distinct form ; these are much smaller, very concave, 

 the point being much curved inwards, not oblique, the 

 apex being perpendicular to the centre of the base, and 

 with five to seven strong denticulations on either side ; 

 they formed a small outer row. I also observed a cha- 

 racter not mentioned either by Yarrell or Jenyns, a 



