506 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Described from the type (No. 03506) taken at Hilo, where 2 examples were also taken by Jordan 
and Sindo in 1901. Later 3 examples were sent from the same place by Mr. Henry W. Henshaw, 
taken from the cavity of a holothurian; another specimen was dredged by the Albatross. This species, 
which also occurs in the South Seas, is readily distinguished from most related species by its dark, 
nontranslucent coloration. It is very properly made the type of a distinct genus by Doctor Gilbert 
in Section II. 
F. boraborensis from Borabora, briefly described by Kaup, has the pectoral 6 to 7 times in head. 
Fierasfer umbralilis Jordan & Evermann, Bull. U. S. Fish Comm. , XXII, 1902 (Apr. 11, 1903), 206, Hilo; Jordan & Snyder, 
Proc. U. S. Nat. Mus., XXVII, 1904, 946 (Hilo). 
Family XCIX. ATELEOPIDTE. 
Body terminating in a long, compressed, tapering tail, naked; one short anterior dorsal and no 
other; anal very long, continuous with the caudal; ventrals reduced to simple filaments, attached to 
the humeral arch; no pseudobranchiae. 
Genus 253. ATELEOPUS Schlegel. 
Head with the snout much protruding and obtusely rounded, the cleft of the mouth being at the 
lower side of the head; maxillaries protractile in a downward direction; body and tail compressed, 
elongate, naked; one short dorsal, the rudimentary second dorsal of the Macruridse having entirely 
disappeared; one long anal, continued on to the caudal; ventral reduced to a filament which is com- 
posed internally of 2 rays, intimately connected by a common membrane; this fin inserted at the 
symphysis of the humeri; teeth in jaws villiform, in bands; vomer and palatine bones smooth. The 
single Hawaiian species of this genus is fully described by Doctor Gilbert in “Deep-sea Fishes.” 
Ateleopus Schlegel, Fauna Japonica, Poiss., 255, 1846 ( japonicus ). 
Podateles Boulenger, Ann. Mag. Nat. Hist., X, 7th ser., 1902, 403 (japonicus ) ; on account of Atelopus Dum6ril & Bibron, a 
genus of batrachians. 
Family C. LYCODAPODIOE. 
Deep-sea fishes allied to the Fierasferidse, differing chief!}' in the normal position of the vent, which 
is remote from the head, and just before the anal fin; gill-openings large, the membranes united ante- 
riorly only, free from the isthmus, as in Fierasfer. Pseudobranchige wanting; no scales; no lateral 
line; no ventral fins. One genus with 4 known species, from the North Pacific. 
The single Hawaiian genus and species fully described in Section II. 
Family Cl. BROTULIDtE. 
Body elongate, compressed, regularly tapering behind, the tail generally subtruncate at base of 
caudal fin, not isocercal; vent submedian; scales cycloid and minute, embedded in the lax skin, which 
more or less envelopes the fins, sometimes wanting; mouth large, with teeth usually in broad bands 
on jaws, vomer, and palatines; gill-openings very large, the membranes mostly free from the isthmus; 
vertical fins united or continuous at base of caudal; dorsal tin beginning not far from nape; caudal 
narrow or pointed; ventral fins small, few-raved, attached to the humeral arch and more or less in 
advance of pectoral. Pyloric coeca few' (1 or 2), rarely obsolete or in increased number (12); maxilla- 
ries generally enlarged behind and produced toward the upper angle. Pseudobranchise small or 
wanting, hypercoracoid with the usual foramen, as in blennioid fishes. These fishes are closely 
related to the Zoarcidx. In spite of curious external resemblances to the Gadidse, their affinities are 
decidedly with the blennioid forms rather than with the latter. Species largely of the depths of the 
seas; 2 species in Cuba degenerated into blind cave-fishes. 
Genus 254. BROTULA Cuvier. 
Body elongate, compressed, covered with minute, smooth scales; eyes moderate; mouth medium, 
with villiform teeth on jaws, vomer, and palatines; lower jaw included; each jaw with 3 barbels on 
each side. Dorsal fin long and low, the dorsal and anal joined to the caudal. Ventral fins close 
