xxn 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. Ribs 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. 



Recent genera : 



A. Without photophores : Saurus, Saurida, Batliysaurus, 

 JTarpodon, Scopelarchus, Aulopus, Odontostomus, Omosudis, 

 Sudis, Paralepis, Bathypterois, Benthosaurus, Chloropkthalmus, 

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

 scopelus, Scopelengys, Nannobrachium, Scopelosaurus. 



Fossil genera : 



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

 dinius, Dactylopogon, Nematonotus, Microcoelia, Opisthopteryx, 

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

 Omiodon, Scopeloides, Parascopehts, Anaptersu. 



