82 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



CERATOSCOPELUS MADEREXSLS (Lowe). (Figure 91.) 

 ScojhIiis maderensis, Lowe, Proc. Zoiil. Soc, 1839, 87; 1850, 250; Trans. Zoiil. Soc, m, 14 (types from Mi- 



deixa, now preserved in the British Museum). — Raffaele, Mitt. Zoiil. Stat. Naples, ix, 184, PI. vn, Fig. 



9.— Lutken, A'id. Med. Natuih. Foreu., 1891, 208.— GriNTHER, Cat. Fish, Brit. Mus., v, 412. 

 Scopelus Bonapartu, Cuvier and Valenciennes, Hist. Nat. Poiss., XXII, 449. — Johnson, Ann. and Mag. Nat. 



Hist., x, 1862, 281 (specimens from Madeira). 



Height of body one-fifth of total length ; length of head nearly oue-third. Least height 

 of tail nearly one-half greatest height of body. Snout moderate. Mouth large, oblique; 

 jaws equal. Maxillary very slightly expanded behind. Ventral reaches to vent, and pec- 

 toral almost as far back as ventral. Anal origin under about nineteenth scale of lateral line. 



Eadial formula: D. 13; A. 12; L. lat. 34-36 (36 in the specimen examined). 



This species, as described by Lowe from Madeira, and afterwards obtained by Johnson 

 from the same locality, has also been found in the Mediterranean. The National Museum 

 has specimens from Messina, presented by the Royal Zoological Museum of Florence. A 

 single specimen (No. 32811, U. S. N. M.) examined by us was obtained by the Albatross 

 from station 2014, in 36° 41' 05" N. lat., 74° 38' 55" W. Ion., at a depth of 373 fathoms, in 

 1883. The range of this species is thus extended westward nearly 4,000 miles. 



Two individuals (No. 21600, U. S. N. M.; No. 199, Gloucester Donations), the longer 

 80 millimeters in length, the other 68 millimeters, were taken by one of the Gloucester fish- 

 ing vessels on the fishing banks. Also, No. 21689, U. S. N. M. (No. 219, Gloucester Dona- 

 tions), 75 millimeters in length. Additional specimens (No. 28978, U. S.N. M.), in very bad 

 condition, were taken by the Fish Hawk from station 1038, in 39° 58' N. lat., 70° 00' W. 

 Ion., at a depth of 146 fathoms. An example (No. 28934, U. S. N. M.), 72 millimeters in 

 length, was taken by the Fish Haick from station 1031, in 39° 57' N. lat,, 69° 19' W. Ion., at 

 a depth of 255 fathoms; two (No. 33564, U. S. N. M.), from station 2101. in 39° 18' 30" N. 

 lat., 68° 24' W. Ion., at a depth of 1,686 fathoms; and a single individual (No. 43810, U. S. 

 N. M.), from station 1044, in 38° 37' N. lat., 73° 12' W. Ion., at a depth of 224 fathoms; 

 another (No. 43776, U. S. N. M.), from station 2528, surface (electric light). 



NOTOSCOPELUS, Gunther. 

 Notoscopehis. Gt'NTnER, Cat. Fish. Brit. Mus., v, 1884, 405, 411 (as suhgenusi. 



Myctophids, with the dorsal fin much longer than the anal, and overlapping the anterior 

 half of the latter. Body elongate. Snout obstusely conical; jaws equal in front; cleft of 

 mouth nearly horizontal ; maxillary not dilated behind. No luminous glands on head or tail. 

 Arrangement of photophores irregular: anterolaterals, 1 or none; mediolaterals, 2 or 3; 

 posterolaterals, 1, 2, or 3. Precaudals 2+1, the last one high up, and between the flap of 

 the operculum and the lateral line. 



The type of this genus is Lampanyctus resplendens, Richardson. The Eigenmanns have 

 set apart as a new genus, under the name •• Catablemella^ a form characterized by the low 

 pectorals," the type being Kotoseopelus brachyehir. (Proc. Cal. Acad. Sci., 2d ser., in, 24.) 



The National Museum has specimens from Nice (Cat. No. 40057, U. S. N. M.)j sent by 

 the Royal Museum at Florence, labeled " Scopelus elonijatus."' which evidently belong to this 

 genus, having 21 rays in the dorsal, 17 or 18 in the anal, the height of the body contained 

 5 times in its length, and the eye one-fourth the length of the head. They would appear to 

 be closely related to iV r . resplendens, which, however, has not hitherto been announced from 

 the Mediterranean. This form is evidently that described and figured by Costa. 



KEY TO THE SPECIES OF NOTOSCOPELUS. 

 I. Mediolaterals 3, iu curved, subvertical line. Posterolaterals 2-3. 

 A. Posterolaterals 2, horizontally side by side. Precaudals 2+1. 



1. Last posterolateral in advance of soft dorsal. Pectoral strong, falcate. 



a. D. 21-24 ; A. 18. L. Lat. 38. Superanals 10 N. resplendens. 



2. Posterolaterals under soft dorsal. Pectoral weak and short. 



a. D. 21; A. 20. L. lat. 42. Superanals 8+8 N. quercinus. 



b. D. 16; A. 14. L. lat. — . Superanals 9+7 N. margaritiferus. 



