248 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



about one lialf that of the secoiul; the third, fourth, fifth and sixth are about equal in 

 length, being about one-half as long as the head. The penultimate is about three-fourths 

 as long as the last, whose length (15 millimeters) is about e(iual to that of the orbit. The 

 longest dorsal ray (20 ndlliiiieters) is about one-half as long as the head. The caudal is 

 very long, its middle rays (31 millimeters) about one-third the standard length. The anal 

 origin is under the penultimate spine of the dorsal. The length of its base (16 nnllin eters 

 equals the height of the body at the end of the anal; length of the first spine (7 njilii- 

 meters) is one-half that of the eye; the second spine (13 millimeters) is nearly twice as 

 long as the first, and the third (1 4 millimeters) is exactly twice as long as the first. The 

 longest ray of the anal (21 millimeters) equals the length of the upper jaw. The vent is 

 under the tenth dorsal spine. The pectoral is very long, reacihing to above the end of the 

 anal; its length (41 millimeters) more than that of the head. The ventral reaches to tlie 

 origin of the anal, its length (21 millimeters) somewhat more than one-fourth of the stand- 

 ard length. 



Eadial formula: — D. XII, 9; A. ill, 5; P. 20, the lower ten and the first simple. 



Five scales between the lateral line and the origin of the sott dorsal; eleven between 

 the origin of the anal and the lateral line, counting obliquely upward and backward; 47 

 rows between the upper angle of the gill-opening and the caudal ; 2S tubes in the lateral line. 



Color above light orange yellow, creamy white below the lateral line; the fins all 



pale. 



The type of the description is a specimen measuring 90 millimeters to base of caudal. 

 From station ccLix, Blake, N. lat. 23o 13', W. Ion. 39° 10'. 



BATHYSEBASTES, Steindaehner and Doderlein. 



Bathysehnstes, Steindacukr & Doderlein, Denksohr. Akad. Wiss. Wien, xlix, 1884, 207. — GCnther, 

 Clialleiiger Ropoit, xxil, 19. 



Scorpsenidswith continuous, though somewhat notched, dorsal; twelve dorsal spines. 

 Head naked above, wnth several series of spinous ridges. Cleft of mouth unusually w ide. 

 Bauds of teeth in the jaws, on the vomer and palatines. Kuixulicial bones of the skull 

 with wide, muciferous cavities. Scales very small, cycloid ; upper side of the head scaleless 

 (or with scales on the lateral parts of the head hidden under the skin). Branchiostegals 7. 



This genus lias not been fully characterized, and it is difficult to see how it will finally 

 be separated from Scorpa-na. 



It includes a single si)ecies, Bathysebastes albescens, obtained from the Sea of Japan. 

 Giinther, though stating that " nothing definite is known about the depths which it inhab- 

 its," includes il in bis list of deep-sea fishes. 



HELICOLENUS, Goode and Bean n. g. 



Scorpsenids with body oblong, somewhat compressed; large head, ctenoid scales on its 

 top, and on the cheeks and ojiercles. Several series of si)iu()us ridges on the head, but no 

 occipital pit. Mouth large, with bands of villiform teeth on jaws, vomer and palatines. 

 Dorsal fin continuous, not deeply notched, with 10 stout spines and 10 to 12 rays. Anal 

 with 3 spines and rays. Pectorals broad, fan-shaped, with rays arranged in three groups : 

 the first of two simjile rays; the second of 8 or 9 branched rays; the third of S simple 

 rays, sometimes prolonged, with their tips temlril-like and free from the membrane for half 

 their length or less. The second dorsal with tips free from mend)rane. Siiborbitat keel 

 smooth, or with a single anterior spine under the eye. Pieoibital with the spines so con- 

 spicuous in Pontinus, small and hidden beneath the skin. Vertebra} 10+14. No air- 

 bladder. 



The type is the Sebastes dactylopterus of De la Roche. The genus occurs in the Mediter- 

 ranean and adjacent parts of the Middle Atlantic, and olf the coast of the United States 

 south of Cape Cod. 



