286 PISCES. 



Lamna, Cuv.,(1) 



Only differs from a true Squalus in the pyramidal snout, under the 

 base of which the nostrils are placed, and in the locality of the bran- 

 chial openings which are before the pectorals. The species that in- 

 habits the seas of Europe, 



Sq. cornubicus, Schn. ; Lacep., I, ii, 3(2) (The Porbeagle 

 Shark), has a projecting carina on each side of the tail, and 

 the lobes of its caudal are almost equal. Its size has often 

 caused it to be confounded with the White Shai'k.(3) 



Species with spiracles and an anal. 



Galeus, Cuv.j(4) 



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 'S*^. galeus, L.; BL, 118, Duham., Sect. IX, pi. 

 XX, f. 1 and 2.(5) The 



MUSTELUS, CUV.(6) 



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. 



Two species are taken in the seas of Europe, which ai'e con- 

 founded under the name of Sq. musteliis, L.(7) The 



(1) Lamna, one of the Greek names of the lamia, which particular word I am 

 prevented from using, as Fabricius has applied it to a genus of insects. 



(2) The lamia, Rondelet, 399, the carcharias, Aldrov., 383 and 388, are nothing 

 more than the coi-nubicus, which attains a very large size, notwithstanding what 

 Bl., Schn., p. 132, says to the contrary. The pretended jaws of the carcharias, 

 given by Aldrov., 382, are also those of the cornubicus. It appears to be more com- 

 mon in the Mediterranean than the true Squalus. 



(3) Add Sq. monensis, Sh., which has a shorter snout and sharper teeth; Isu- 

 rus oxyrJiynchus, Rafin., Caratt., XIII, 1, is very possibly a species of this genus, 

 perhaps the common one disfigured by the stuffer. 



(4) Galeus, the generic name, in Greek, of the Squali. 



(5) It is also the lamiola, Rondel., 377, cop. Aldrov., 394 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 Herissant, Ac. des 

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

 which will be described in our Icthyology. 



(6) Mustelus, the Latin translation of yttxic;, a generic name for the Squali. 

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



(7) The Emissole commune. Rondel., 375, Salv., 136, f. 2, cop. Will., pi. B, 5, f. 

 1, and improperly cited as the galeus. 



