326 PLAG10ST0MATA. 



Family VI— RHINID^. 



Spiracles large. Gill-openings wide, lateral, and partly concealed from above 

 by tbe pectoral fins. Body flat. Mouth anterior. Nostrils situated at the front 

 edge of the snout and with skinny valvular coverings. Pectoral fins large and 

 laterally expanded but not attached to the head. Dorsal fins spineless, situated 

 in the caudal region of the body : no anal. Males with claspers. 



Genus I — Rhixa, Klein. 

 Squatina, Dumeril. - 



Definition as in the family. Spiracles a short distance behind the eyes. Teeth 

 conical, and placed at some distance asunder. 



The angel-fish of onr coasts, although evidently one of the shark family, in 

 forni more nearly approaches the rays and skates. 



Geographical distribution. — Throughout the temperate and tropical seas. 



1. Rhina squatina, Plate CLXIII. 



Pivrj, Arist. Hist. An. ii, c. 15, v, c. 10, 11, ix, c. 37. 



Squatina, Belon. p. 78 ; Rondel, p. 367 ; Gesner, De Aquat. p. 899 ; Salvian. 

 p. 152, f . 53 ; Aldrov. iii, p. 472 ; Jonston, p. 39, t. xi, f. 7 ; Willughby, p: 79, 

 t. D3 ; Ray, p. 26 ; Rutty, i, p. 349. Squalus, sp. Artedi, Gen. p. 67, no. 6, 

 Synon. p. 95, no. 6; Gronov. Zooph. no. 151, p. 34. Rhina, Klein, Pise. Miss, iii, 

 p. 14, sp. 1, t. ii, f. 5, 6. Angel fish {Squalus Rondeletii) , Borlase, Cornwall, 

 p. 265, t. xxvi, f. 5 ; Pennant, Brit. Zool. (Ed. 1776) iii, p. 98, pi. xii, and Angel 

 shark (Ed. 1812) iii, p. 130, pi. xv. Squatine, Duhamel, Pech. ix, iii, p. 291, 

 pi. xiv, f . 1-4. 



Squalus squatina, Linn, i, p. 398 ; Briinn. Ich. Mass. p. 5 ; Gmel. Linn. p. 1503 ; 

 Block, Ich. p. 811, t. cxvi ; Bonnaterre, Enc. Ich. p. 12, pi. v, f. 14; Lacep. i, 

 p. 293, pi. xii; f. 1 ; Bl. Schn. p. 137 ; Donovan, Brit. Eish. i, pi. xvii ; Turton, 

 Brit. Fauna, p. 114 ; Shaw, Nat. Misc. xxi, pi. 906. 



Squatina Zcem'sand aculeata, Cuv. Regne Anim. ; Lesuetrr, J. A. Sc. Phil, i, t. 1, 



Squatina vulgaris, Risso, Ich. Nice, p. 45 ; Flem. p. 169 ; Mull, and Henle, 

 p. 99, pi. xxxv, f. 4 (snout) ; Kroyer, Damn. Fisk. iii, p. 935 ; Gray, Cat. Chond. 

 p. 79 ; Schlegel, Fauna Japon. Pise. p. 305, pi. exxxvi ; White, Catal. p. 133 ; 

 Shaw, Gen. Zool. t. civ. 



Squatina angelus, Dumeril, Zool. An. p. 102 ; Blainv. p. 53, pi. xiii, f. 1, 2 ; 

 Risso, Eur. Merid. iii, p. 139 ; Jenyns, Manual, p. 507 ; Bonap. Faun, d'ltal. 

 Pesc. iii, p. 147, t. f . 1 ; Yarrell, Brit. Fishes (ed. 1) ii, p. 407, c. fig. (ed. 2) ii, 

 p. 539 (ed. 3) ii, p. 536; Templeton, M. N. H. 1837 (2) i, p. 417; Parnell, Wern. 

 Mem. vii, p. 421 ; Thompson, N. H. Ireland, iv, p. 255 ; Gronov. ed Gray, p. 14 ; 

 Schlegel, Dieren Neder. p. 195, pi. xix, f. 1 ; Canestrini, Fauna Ital. Pesc. p. 51 ; 

 Moreau, Poiss. de la France, i, p. 369, f. 66. 



Squatina europea, Swainson, Fish, ii, p. 321. 



Squatina Icevis, Couch, Linn. Trans, xiv, p. 90. 



Squatina dumerilii, Lesueur, J. A. N. Sc. Phil, i, p. 225, pi. x ; De Kay, New 

 York Fauna, Fish. p. 363, pi. lxii, fig. 203 ; Leidy, J. A. N. S. Phil. 1847, p. 247. 



Squatina fimbriata, Mull, and Henle, pp. 101, 192, pi. xxxv (snout). 



Squatina oculata, Bonap. 1. c. 



Squatina 'japonica, Bleeker, Act. Soc. Sc. Ind. Neerl. iii, Japan, iv, p. 40. 



Rhina squatina, Raf. Ind. p. 45 ; Dumeril, Ich. i, p. 464, pi. v, f. 5 (scales) ; 

 Giinther, Catal. viii, p. 430 ; Winther, Ich. Dan. Mar. p. 59 ; Giglioli, Cat. Pesc. 

 Ital. p. 53. 



Rhina aculeata, Dumeril, 1. c. p. 465, pi. v, f. 7 (scales). 



Rhina califomica, Ayres, Proc. Calif. Ac. Nat. Sc. Phil. 1859, p. 29, 1860, f. 7. 



