262 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



iu a lingiiiform lobe. The veatrals are directly under the axils of the pectorals, with the 

 outer rays produced, thick ;iud branched. 



Tills genus has as yet been found only iu the Pacific. The type is Sebastolobus macro- , 

 chir (Giinther) GiU, (Challenger Report, i, 1S80, part vi, 60, PI. xxvii), obtained by the 

 Challemjer oft" Inosima, at a depth of 345 fathoms. Another species, 8. alascanus, Beau 

 (I'roc. U. IS. Nat. Mus., xiii, 1S90, ii), was obtained by the Albatrosti at station :i853, off 

 Trinity Islands, Alaska, in N. Lat. 56°, W. Lou. 154°, at a depth of 159 fathoms. 



SEBASTODES, GiU. 

 Sebasiodes, Gill, Proc. Acad. Nat. Sci. Phila., 1863, 207. 



Scorpicnids with the dorsal continuous, though somewhat notched, and with thirteen 

 spines iu the dorsal and uine rays in the aual. Skull thick and cranial ridges weak. 

 Lower jaw much i^rojectiug. Teeth in villiform bands on jaws, vomer, and palatines. 

 Scales small, ninety to one hundred in the lateral line. 



This genus is represented by a single siiecies, S. paucispinis, (Ayres), Jordan and Gil- 

 bert, found on the coast of California " iti rather deep water." Deeii-sea representatives of 

 the genus should be looked for on our Northwest coast. 



SEBASTICHTHYS, Gill. 

 Sebastiehthys, Gill, Proc. Acad. Nat. Sci. Pliila., 1863, 207. 



Scorpjenids with the dorsal continuous, though somewhat notched, and with thirteen 

 spines in the dorsal and five to nine in the anal. Skull thick and cranial ridges weak. 

 Lower jaw projecting but slightly. Teeth iu villiform bands on jaws, vomer, and palatines. 

 Scales moderate, forty-five to eighty in the lateral line. 



This geuus is represented on the Northwest coast aud adjacent deep waters by forty 

 or more species, nine or ten of these having been described as new by Gilbert,* from the 

 bathybial fauna explored by the Albatrosft in 1888. These occur outside the KtOfathom 

 line, and to as great a depth as 200 fathoms. As might have been expected, the genus 

 of bottom-living fishes most abundant in species and numbers along the shores of this coast, 

 has contributed the largest quota to the inshore deep-water tauna of the adjacent ocean. 



SETARCHES, Johnson. 

 Setarches, Johnson, Proc. Zool, Soc. London, 1862, 176.— Jordan aud Gilbert, BuU. xvi, U. S. N. M., 682. 



Scorpreuids with head and body couipressed, the head flat between the eyes, with sev- 

 eral low ridges. Ilead scaleless, its bones cavernous. No transverse groove on the occiput. 

 Preoperculum and operculum strongly armed with straight, long spiues. Eye moderate, 

 near but not touchiug the profile. Mouth terminal, broad, somewhat obliqiu', the pusterior 

 edge of the maxillary extending to opposite the posterior part of the eye, aud much 

 expanded. Lower jaw somewhat projecting, with knob at symphysis received in rostral 

 notch. Villiform teeth in jaws, on vomer and palatines. 



Opercles scaly. Scales cycloid, moderate. Lateral liue a broad, scaleless groove, with 

 a series of skinny tubes. No lacinite. 



Dorsal fin deeply notched, so as to appear in two portions; dorsal spines 10-1, the soft 

 portion of the flu shorter, aud with rays fewer than spines. Aual with 3 strong spines 

 inserted under the end of the dorsal. Pectoral flu broad and loug, with 20 or more rays, 

 of which a considerable number of the medial ones are branched. Brauchiostegals 6 or 7. 

 Pyloric appeudages few. No air bladder. 



The type is Setarches GUutherl (Johuson),from Madeira, undoubtedly from deep water, 

 since only oue specimen appears to have ever been taken. The genus Lioscorpitis (Giinther) 

 can scarcely be distinguislied from Setarches. 



* Proceedings, U. S. N. M., xili, 48-126. 



