F1XED-GILLED CHONDROPTERYGIANS 245 



Species with spiracles and an anal. 

 Galeus *, Cue. 



The general form of the Sharks, but differing in the presence of 

 spiracles. But a single species is known that inhabits the seas of 

 Europe. It is the Sq. galeus, L.; Bl, 118. Duham., Sect. IX, pi. xx, f. 1 

 and 2. f The 



MUSTELUS \, CllV. 



Resembles the Squali and Galei in form, but in addition to the 

 presence of spiracles as in the latter, the teeth are like small paving 

 stones. 



The two species are taken in the seas of Europe, which are 

 confounded under the name of Sq. mustelus, L. § The 



NoTIDANUS ||, CllV. 



Only differs from Galeus in the absence of the first dorsal. 



Sq. griseus, L. ; Sq. vacca, Schn. ; Augustin Scilla, pi. xvii ; 

 Le Griset 9 ^. Ash-coloured above, whitish beneath, and very 

 remarkable for its six wide branchial openings, and for its teeth 

 which are triangular above and serrated below ; the snout is 

 depressed and rounded like that of the shark. 



Sq. cinereus, Gm. Seven very wide branchial openings ; teeth 

 similar to the lower ones of the Griseus; snout pointed like that 

 of the cornubicus**. Both these species inhabit the Mediter- 

 ranean f f . The 



SelacheJ|, Cuv. 



In addition to the form of the Squali, and the spiracles of the Galei, 

 is furnished with branchial openings that are nearly large enough to 

 encircle the neck, and with small conical and unem irginate teeth. 



The common species, Sq. maximus, L. ; Blainv., Ann. du 



* Galeus, the generic name in Greek, of the Squali. 



t It is also the lamiola, Rondel., 377, cop. Aldrov., 393 and 393, Salv., 130, I, 

 cop. Will., B, 6. The enormous size sometimes attributed to it, is owing to the 

 fact that the teeth and jaws, represented Lacep., I, vii, 2, and Htrissant, Ac. des 

 Sc, 1794, have been referred to it — they belong, however, to a foreign species, 

 which will be described in our Icthyology. 



X Mustelus, the Latin translation of yaleos, a generic name for the Squali. 

 N.B. M. Rafin. unites Scyllium Galeus and Mustelus, in his genus Galeus. 



§ The Emissole commune, Rondel., 375, Salv., 136, f. 2, cop. Will., pi. B, 5, f. 1, 

 and improperly cited as the galeus. 



The Emissole tachetee de blanc, or len/illaf — Rondel., 376, Bel., 71, cop. Aldrov., 

 393. 



|| Noiidanus (Dry back), the Athenian name of some Squalus. 



^| The teeth are well figured, but the fish itself very badly. It is the genus 

 Hexanchus, Rafin. 



** It is the genus Heptranchias, Rafin., who erroneously states that it has no 

 spiracles. 



■ft Messrs. Quoy and Gaym.have discovered, in the Indian Ocean a species of this 

 subgenus which is all spotted with black, and has seven spiracles. 



XX Selache, a Greek name common to all the cartilaginous fishes. 



