good. Fishermen generally consider this species a nuisance because 

 it tends to snarl and tangle nets. 



Family ( >rectolobidae 

 Genus Gingly mo stoma 



(8) Ginglymo stoma cirratum (Bonnaterre) 1788 

 Nurse shark, carpet shark 



Specimens: 



This shark has been reported by II. S. Champlin as being taken 

 from a pound net at Point Judith during the summer of 1920 

 (Nichols and Breder: 1927, p. 1 1). It is generally found from North 

 Carolina to southern Brazil. Identification of this species is simple 

 as it has a fleshy barbel at each corner of a quadrangular flap in 

 front of the mouth. Therefore, there appears to be no reason to 

 question the authenticity of the report. 



Economic Importance: 



This species has a very hard, smooth skin which is the most 

 desirable of all shark leathers and brings the highest prices. On 

 the islands off the southern coast of Brazil the otoliths of this 

 species are used by local fishermen as a diuretic. 



Family Scyliorhinidae 

 Genus Scyliorhinus 



(9) Scyliorhinus retifer (Carman) 1881 



Chain dogfish 



Specimens: 



This species is frequently taken on the tilefish grounds of the 

 edge of the continental slope off Block Island by offshore trawlers. 

 A member of this species was taken on October 20, 1954, in 29 

 fathoms off Point Judith by the dragger William Cheseboroii^h. 

 The chain dogfish is of no economic importance. 



Family Triakidae 

 Genus Mustelns 



(10) M ustelus cams (Mitchili) 1815 



Atlantic smooth dogfish, smooth hound, grayfish 



n 



