HAPLOMI 



6ll 



ordinary : Black-Fishes will remain frozen in baskets for weeks, 

 and when thawed are as lively as ever, one having been swallowed 

 in a congealed condition by a dog, thawed out by the heat of 

 the stomach, and vomited up alive. 



Fig. 370. — Dallia pectoralis, \ natural size. (After L. M. Turner.) 



Fam. 6. Scopelidae. — Praemaxillaries much elongate, and 

 completely excluding the maxillaries from the oral border. 

 Supraoccipital in contact with the frontals, sometimes partly 

 covered by the parietals ; opercular bones all well developed. 

 Basis cranii simple. Eibs sessile ; no parapophyses on the prae- 

 caudal vertebrae ; epipleurals and epineurals. Post-temporal 

 forked, the upper branch in contact with the epiotic or the 

 supraoccipital, the lower with the opisthotic ; post-clavicle present. 

 An adipose dorsal fin often occurs ; luminous spots often present 

 on head and body. Ventral fins with 7 to 1 rays. Air-bladder 

 sometimes absent. 



A large family (over 100 known living species), mostly of 

 pelagic and deep-sea Fishes. A great number of fossil types 

 have been described. 



Eecent genera : 



A. "Without photophores : Saurus, Saurida, Bathysmtrus, 

 Harpodon, Scopelarchus, Aulopus, Odontostomus, Omosudis, 

 Sudis, Paralepis, Bathypterois, Benthosaurus, Chlorophthalmus, 

 Ipnops. B. With photophores : Scopelus, JDasyscopelus, Neo- 

 scopelus, Scopelengys, NannolracMum, Seopelosaurus. 



Fossil genera : 



A. Cretaceous : Sardinioides, Acrognathus, Leptosomus, Sar- 

 dinius, Bcwtylopogon, Nematonotus, Microcoelia, Opisthopteryx, 

 Apateodus, Bhinellus. B. Eocene, Oligocene, and Miocene : 

 Omiodon, Scopeloides, Parascopelus, Anaptersu. 



