96 DEEP-SEA FISHES OF TUE ATLANTIC BASIN. 



MAUROLICUS BOREALIS,{NiLSSox), Guntuek. (Figure 111.) 



Scopdus borenlis, NiLSSON, Obsorv. Zool., tt. 



MainoVtciixbormlis, (iLNTHEii, Cat. Fish. Brit. Mas., v, 389. 



Scoj)elii>i Uumboldii, I)E Kay, N. Y. Fauna, Fish., 246. (Not ofCuvier.) Stouek, Hist. Fish. Mass., 328. 



liody coiiipiessed. Mouth wide, the lower jaw much projectiug. Teeth small. Eye 

 large, 3 in head. Fi\'e luminous spots on the throat, lli between pectorals aud ventrals, 

 above these a row of .S, 5 between ventrals and anal, vent to tail 24. Dorsal nearer tail 

 than snout. Adipose tin very small. Ventrals below dorsal. Oaudallorked. Color: dark 

 greenish, sides silvery. 



Head, .'U; dejttli, 3^. Kadial formula: D. 10; A. 15. 



A specimen of this species was picked up on the beach near Provincetown in August, 

 1871), by Dr. Bean. It had previously been found ofi" the coasts of Great Britain and Scan- 

 dinavia. 



Specimens were obtained by the Albatross from station 2402, in 28° 36' N. lat., 85° 33' 

 W. Ion., at a depth of 111 fathoms; and No. 29000, TJ. S. N. M., from station 1044, in 38° 37' 

 N. hit., 7.'!° 12' W. Ion., at a depth 224 fathoms. A specimen was also received by the 

 National Museum ft-om Woods Holl, Massachusetts. 



Family CHAULIODONTIDyE. 



Chaiilwdonthia, GtiNTUKR, Cat. Fisli. Brit. Mus., v, 18t)4, 391, 392 (group iiniler SternopUjcUda;). 

 Chauliodontidw, Bonapakte, Catologo Metodico, 1846, 5. — Gill, Arrangeuieut Families of Fishes, 1862, 15. — 

 Jordan and Gilbert, Bull, xvi, U. S. Nat. Mus., 284. 



Body oblong or elongate, compressed, covered with rather large, thin, deciduous scales. 

 Lateral line present. No barbels. Series of phosphorescent spots running along the lower 

 side of the head, body, and tail. Head much compressed, the bones thin, but ossified. 

 Mouth with the cleft extremely wide, its margius formed by maxillaries and premaxillaries, 

 both of which are provided with teeth. Teeth unequal, some of them long and pointed, 

 fang-like. Pectorals and venti'als well developed. Adipose fin present. Caudal forked. 

 Gill openings very wide. No pseudobranchia^ 



CHAULIODUS, Schneider. 



ChauHodus, Schneider, Bloch, Systema Ichthyologiaj, 1801, 430. — Gunther, t^at. Fish. Brit. Mus., v, 392. — 

 Jordan and Gilbert, Bull, xvi, U. S. Nat. Mus., 284. 



Body elongate, compressed, covered with very thin, deciduous scales of moderate size. 

 Head short, much compressed and elevated, the lower jaw projectiug, the snout much shorter 

 tlian eye. Mouth extremely wide, the cleft reaching much beyond eye. Premaxillaries 

 attached to spine with 4 long, fang-like canines on each side. Mandible with pointed, 

 wide-set teeth, the anterior ones excessively long; none of these large teeth received within 

 the mouth. Maxillaries with fine teeth ; palatine with a single series of small, pointed teeth ; 

 no teeth on the tongue. Eye moderate. Pectorals moderate. Ventrals large. Dorsal fin 

 high, placed anteriorly, well in front of the ventrals. Adipose fin moderate, sometimes fim- 

 briate, oppo.site the low, short anal. Caudal moderate, forked. Gill openings very wide. 

 No pseudobranchiie. No gill rakers. Branch iostegals numerous. {Jordan and Gilbert.) 



The question of the presence or absence of the air bladder having never been inves- 

 tigated, a dissection by Dr. Bean has revealed the presence of a consi)icuous but thin-walled 

 organ. The specimen (No. .'»()2C, U. S. N. M.) taken by the Albatross shows long, slender 

 ovaries, with small but perfectly distinct eggs. 



C. pammelas, Alcock (Ann. & Mag. Nat. Hist. 1892, ii, 355) is from the Indian Ocean, 

 Investigator and station 126, 1,310 fathoms. It is close to ('. Sloa7ii. 



CHAULIODUS SLOANI, Schneider. (Fignro 115.) 



Chanliodus Sloani, Scuneider, Bloch's, Systema Ichthyologi.i-, 1801, 430.— Cuvier & Vai.enciennes, Hist. 

 Nat. Boiss., xxii, 383.— GC-ntiikr, Cat. Fish. Brit. Mus., v, 392; Cliallenger, x.xii, 179.— Alcock, Bathy- 

 bial Fishes of Bay of Bengal, 1889, 25; Ann. an<i Mag. Nat. Hist., 6th Ser. vu, 11; 1891, il, 127; 1892, 



