TJON. 



132 ANGEL SHARK. Class IV. 



respect to its delicacy, of the whole cartilagi- 

 nous tribe. 

 Descrip- They grow to a great size; we have seen 

 them of near an hundred weight. The head is 

 large, the teeth broad at their base, but slender 

 and very sharp above, and disposed in five 

 rows all round the jaws; like those of all 

 Sharks, they are capable of being raised or 

 depressed by means of muscles uniting them 

 to the jaws, not being lodged in sockets as the 

 teeth of cetaceous fish are ; the tongue is 

 large ; the eyes small ; the pupil of a pale 

 green ; the irides white, spotted with brown ; 

 behind each eye is a semilunar orifice; the 

 back is of a pale ash color, and very rough ; 

 along the middle is a prickly tuberculated line ; 

 the belly is white and smooth; the pectoral 

 fins are very large, and extend horizontally 

 from the body to a great distance ; they have 

 some resemblance to wings, so writers have 

 given this the name it bears in this work ; the 

 ventral fins are placed in the same manner, and 

 the double penis is placed in them, which forms 

 another character of the males in this and the 

 last genus; the tail is bifurcated, the upper 

 lobe rather the longer : not very remote from 

 the end on the back are two fins. 



