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Memoir Sears Foundation for Marine Research 



Distinctive Characters. S. cubensis differs most sharply from acanthias and blainville 

 in having the inner corner of its pectoral acutely angular (broadly rounded in the other two 

 species) } it differs further from acanthias in that its first dorsal originates only a little 

 posterior to the axil of its pectoral (over or behind the inner corner of the pectoral in 

 acanthias) , the midpoint of its pelvics are only very little nearer to its second dorsal than 



Figure 89. Squalus cubensis, female, about 672 mm. long, from near Havana, Cuba (Harv. Mus. Comp. 

 Zool., No. 1461). A Anterior part of head from below, Yz natural size. B Left-hand nostril, about 4 x. 

 C Second to fourth upper and lower teeth, about 8.5 x. 



to its first (much nearer to the second dorsal than to the first in acanthias)., it has longer 

 fin spines and its coloration is plain; it differs further from blainville in having the distal 

 margin of its pectoral deeply concave. 



Description. Proportional dimensions in per cent of total length. Male, 524 mm., 

 from Havana, Cuba (Harv. Mus. Comp. Zool., holotype. No. 1458). Female, 672 mm., 

 same locality (Harv. Mus. Comp. Zool., paratype. No. 1461). 



Trunk at origin of fectoral: breadth 12.4, 12.9; height 9.4, 9.5. 



Snout length in front of: outer nostrils 3.0, 3.7; mouth 9.5, 9.5. 



Eye: horizontal diameter 4.8, 4.8. 



Mo«/A; breadth 6.7, 7.I} height 1.3, 1.2. 



Nostrils: distance between inner ends 4.0, 4.6. 



Labial furrow length from angle of mouth: upper 2.7, 2.2; lower 1.5, 1.6. 



