598 ORDER CHONDROPTERYGII. 



In other scyllia, all foreign, the anal is placed be- 

 hind the second dorsal. The air-holes are remarkably 

 small. The fifth branchial aperture is often con- 

 cealed in the fourth ; and the lobules of the nostrils 

 are generally prolonged into barbels l . 



Under the name of 



Squali, properly so called, 



We comprehend all the species with prominent 

 muzzle, under which are the nostrils not prolonged 

 into a furrow, nor furnished with lobules ; their caudal 

 fin has a lobule underneath, which causes it more or 

 less to approach the forked form. The ancient dis- 

 tribution, according to the absence or presence of 

 air-holes and anal, may be preserved ; but to render 

 it natural, the divisions must be multiplied. 



Species without air-holes, provided with an anal. 



prionurus, Otto ; the Roussette of Gunner, Sq. Catulus, Gunn, 

 Mem. de Dronth. II. pi. i., which appears a separate species ; the 

 Sq. of Edwards, Edw. 289, under the false name of Greater cat-fish, 

 which would indicate the Roussette, and which is cited erroneously, 

 under the pretended Sq. stellaris ; the aS*^. Afrtcanus, or galonne 

 of Broussonet, Shaw, Nat. Misc. 346. N.B. The word longitudi- 

 nalibus, added gratuitously to the character by Gmelin, is not just ; 

 the pretended Sq. canicula, Bl. 112, which is a distinct foreign 

 species, unless it be a very strongly marked variety of catulus. 



1 Sq. pointille, Lac. II. iv. 3, the same as the Sq. barbillon, Brous. 

 (Sq. barbatus, Gm.) and as the Sq. punctatus, Schn., Parra. pi. 

 xxxiv. f. 2. Sq. tigre, Lac, or Sq.fasciatus, Bl. 113. {Sq. tigrinus, 

 and Sq. longicaudus, Gm.) The Sq. lobatus, Schn., Phil. Voy. pi. 

 xliii. p. 285. The Bokee sorra, Russ. Corom. XVI. 



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