66 CRETACEOUS AND TERTIARY FISH. 



County i (C. C. Abbott), 8 (J. H. Slack) ; Crosswicks in Mer- 

 cer County i (W. M. Gabb) ; Vincentown 2 (T. M. Bryan on 

 May 4th, 1875), 2 (Bryan); Pemberton 3 (Bryan), 1 (C. 

 Budd) ; -Mullica Hill in Gloucester County 1 (Abbott). 



In the Geological Survey collection I found the following 1 : 

 Monmouth County 1 (P. D. Knieskern) and a fragmentary 

 crown from the Wenonah sand a little less than 1 mile southeast 

 of Crawford's Corner (J. Longstreet's pit). [The formations 

 represented are the Merchantville or Woodbury clay, the We- 

 nonah sand, the Navesink-Hornerstown marl and the Manasquan 

 marl, K.] 



Family GALEORHINID,E. 

 THE REQUIEM SHARKS. 



Body elongate. Head normal. Snout longitudinally and nor- 

 mally produced. Eyes with nictitating membranes. Gill-open- 

 ings moderate, last above pectoral base. Spiracles small or ob- 

 solete. Oviparous. Dorsals 2, first high, short and entirely be- 

 fore ventrals. Second dorsal comparatively small, opposite anal. 

 Tail mostly bent up from base of caudal fin, and sides without 

 keel. Fins without spines. 



This is the largest group of recent sharks, and with many 

 closely related forms, difficult of determination, is found living in 

 most all seas. The living forms comprise about 20 genera, and 

 only to a few of them have fossils been referred. Also', two 

 extinct genera have been described. 



Genus GALEOCERDO Miiller and Henle. 



Galeocerdo Miiller and Henle, Syst. Besch. Plag., 1838, p. 59. Type Galeo- 

 cerdo tigrinus Miiller and Henle, first species, restricted by Gill, Ann. 

 Lye N. Hist. N. Y., VII, 1862^ p. 402. 



Galeodes Heckel, Sitz. Ak. Wiss. Wien, XI, 1853, P- 324- Type Galeodes 

 priscus Heckel, monotypic. ' 



Boreogaleus Gill, 1. c. 1 Type Squalus arcticus Faber, specified, montoype. 



Mouth crescent-shaped. Teeth similar in both jaws, large, 

 oblique, coarsely serrated on both margins and with deep notch 



1 See diagnosis, p. 411. 



