52 list or FISH. 



B. With nictitating membranes and spiracles; the last or the hvo 

 last gill-openings over the pectoral -fins. 



Squali (§ 2, B), Mull. & Henle, Plag. 37. 



3. Head flat. Snout pointed or blunt. Nostrils, openings between 

 the eyelids. Mouth, and its corner folds as in the Carchariae ; but 

 they all possess small lip- cartilages. The spiracles are small, longi- 

 tudinal, or round. Teeth in both jaws alike, flat, with cutting- 

 edges, a point inclined obliquely outwards, and a ledge on the outer 

 border; the edges are either wholly without serratures, or they are 

 serrated on the outer side only, or on both sides. The anal stands 

 close before, behind or opposite to the second back-fin. The upper 

 lobe of the tail-fin has one or two notches before its end. The tail- 

 pit exists or is wanting. The gut-valve is either screw-formed or 

 rolled lengthways. Scales small, three-keeled, with a middle point. 

 — Galeiana. 



Galei, Mull, <$• Henle, Play. 5. 



Squalini, part, Bonap. Selac. Tab. Anal. 10, 1838. 



1. GALE US. 



The longest spiracles about half the length of the eye-openings 

 behind the eyes. The pupil forms an angle beneath, and is round 

 above. The teeth have an inner smooth edge and an outer serrated 

 one, which is set off from the upright smooth point of the tooth: in 

 some teeth the inner edge exhibits a trace of a fine serrature. The 

 front teeth are straight, jagged on both sides of the base, and 

 no smaller than the side teeth. Tail-pit wanting. The upper lobe 

 of the tail-fin has a notch. Gut-valve screw-formed. 



Galeus, Cuv. Reg. An. 2 ed. ii. 389. Bonap. Selae. Tab. Anal. 10, 

 1838. Mull. Sr Henle, Mag. Nat. Hist. ii. 1838. Plagiost. 

 37. Flem. Brit. An. 165. 



Galeorhinus, sp., Blainv. Bull. Soc. Phil. Jour. 121, 1816. Jour, 

 de Phys. 263, 1816. 



1. Galeus canis. The Tope. 



Galeus canis, Mull. Sf Henle, Plag. 37. Rond. 377. (Copied from 

 Gesner, 197). Bonap. viii. 



