420 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



2. CATUIUS CANESCENS (Gunther). 



Two specimens, from Albatross stations 2783 and 2784, in 122 and 

 194 fathoms, respectively, the first between Hanover Island and the 

 mamland, the second between Wellington Island and the mainland. 

 The largest is 46 cm. in total length. The teeth each have a large 

 cusp and four smaller ones, contrasting with the tricuspid teeth of 

 0. stellaris, the generic type. 



Four smaller specimens are from station 2780, in the western en- 

 trance of the Straits of Magellan, in 369 fathoms. 



3. SQUALUS FERNANDINUS Molina. 



Three male specimens from Gregory Bay, Straits of MegeUan, 

 are but slightly different from a specimen of Squalus sucMii from 

 San Diego. The former are 63 to 68 cm. in total length, the latter 

 is a female, 69 cm. Regan, in Sharks of the Family Squalidae,^ 

 gives the main difference as the extension of the pectoral fin, when 

 laid back, to the middle of the first dorsal in S. fernandinus. This 

 difference, however, does not hold well, for our largest specimen of 

 S . Jemandinus agrees in this with our specimen of S. sucMii, although 

 the pectoral, nevertheless, uniformly is very slightly shorter in S. 

 fernandinus. This species has also very indistinct white body spots 

 that are lacking in our adult specimen of S. sucklii, and a generally 

 lighter color, with somewhat shorter caudal. In the followmg table 

 the measurements are given in hundredths of the total length. The 

 method of preservation of the specimens was apparently not the same, 

 which should be considered: 



Length in centimeters 



Length of second dorsal 



Length of pectoral 



Length of upper caudal lobe. 



Squalus 

 sucklii. 



69 



0.045 



.155 



.215 



4. ETMOPTERUS GRANULOSUS (Giinther). 



A small specimen 11 cm. in length, from Albatross station 2781, in 

 348 fathoms. It is very much smaller than that described by 

 Gunther and shows the following differences: Distance from tip of 

 snout to front of upper jaw equaUng width of mouth; length of eye 

 as great as distance measured obliquely from the center of the squiire 

 snout to the anterior edge of the eye; spine of first dorsal two-thirds 

 the length of that of the second; "granules" present as distinct and 

 strong spinules, arranged in a band passing from each angle of the 

 snout back along the upper portion of the flanks below the first 

 dorsal, four or five series wide, another commencing in an indefinite 



1 Ann. Mag. Nat. Hist., ser. 8, vol. 2, July, 1908. 



