DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 403 



mouth wide, lateral, extondiug to beyond the center ot tlic eye; intermaxillary not much 

 shorter than the maxillary. Teeth in villiforui bands iu both jaws; barbel very small. lu- 

 terorbital space convex, its width being considerably more than the diameter of the eye, 

 which in a specimen 3 feet loiij;- is equal to the length of the snout and one-fourth of that 

 of the head. The scales are e(iually rough over the whole of their surface, all the spinelets 

 being directed backwards; there are 7 or 8 scales in a transverse series between the dorsal 

 fin and the lateral line. Head entirely covered with small scales. Anterior dorsal spine 

 armed with numerous small closely-set barbs; outer ventral ray produced into a long 

 filament. Distance between the vent and isthmus two-thirds of the length of the head. 



Eadial formula: D. 10; P. 19; V. 7. [Giinther.) 



Gorypha'iwiiles rupestris has i + 15 gill-rakers ( = 19). The gill membrane is entirely free 

 from the isthmus behind. The intermaxilla is continued beyond its vertical process and 

 extends almost as far back as the maxilla, these two bones being about equal in length. 

 The last third of the intermaxilla is toothless. The intermaxillary teeth are in a very nar- 

 row band, which is uniform in width, and the outer teeth are only slightly enlarged. The 

 mandible has villiform teeth in a broad bunch-like baud at the symphysis and becoming 

 uniserial behind. The eye is nearly circular. The snout projects slightly. Gill-rakers 

 longer and less tubercular in character than in M. herglax and M. acrolepis. The sub- 

 orbital ridge is feebly developed and is very abruptly curved ujjward and narrowed in 

 fi'ont of the eye where it joins the nasal ridge. In M. herglax and M. acroleins the sub- 

 orbital ridge is very strong and is continued almost in a straight line towards the nasal ridge. 



Specimens of this fish were taken by the Poyciipinc and Knight Errant between Shet- 

 land and the Faroes iu 200-500 fathoms. A single specimeir was secured by the Blahe from 

 station cccvi, in 41^ .32' 50" N. lat., 65° 55' W. Ion., at a depth of 524 fathoms. The 

 Albatross obtained examples from station 2532, in 40° 34' 30" N. lat., 00° 48' W. Ion., at 

 a depth of 705 fathoms; Cat. No. 35661, U. S. N. M., from station 2238, in 39° 06' N. lat., 

 720 10' W. Ion., at a depth of 904 fathoms; Cat. No. 32C57, U. S. N. M., from station 2003, 

 in 370 16' 30" N. lat., 74^ 20' 30" W. Ion., at a depth of G41 fathoms; from station 254(>, 

 in 390 53' 30" N. lat., 70° 17' 30" W. Ion., at a depth of 538 fiithoms; from station 2549, 

 in 39^ 51' 30" N. lat., 70° 17' W. Ion., at a depth of 571 fethoms; from station 2429, in 

 42° 55' 30" N. lat., 50° 51' W. Ion., at a depth of 471 fathoms; from station 2078, in 41° 

 11' 30" N. lat., 66° 12' 20" W. Ion., at a depth of 499 fathoms; Cat. No. 35568, U. S. N. 

 M., from station 2202, in 39° 38' N. lat., 71° 39' 45" W. Ion., at a depth of 515 fathoms; 

 from station 2528, in 41° 47' N. lat., 65° 37' 30" W. Ion., at a depth of 077 fathoms; and 

 from station 2554, in 39'= 48' 30" N. lat., 70'' 40' 30" W. Ion., at a depth of 445 tathoms; 

 The Fish Haiclc from station 1155, in 39° 52' N. lat., 70 30' W. Ion., at a depth of 554 

 fathoms; and Cat. No. 28943, U. S. N. M., from station 1029, in 39° 57' 05" N. lat., 69° 16' 

 W. Ion., at a depth of 458 fathoms. A single individual (Cat. 2G347, U. S. N. M.) was 

 captured by the schooner G. 1'. ^yhifmaH off the southern i)art of Banquereau. 



CORYPH^NOIDES SULCATUS, Goode and Bean. 



Coryphwnoides aulcatus, Goode and Bean, Proc. U. S. Nat. Mus., 1888, .596. 

 Trachonurus siiJcaliis, GooDE and Bean, Oceanic Ichthyology, 1893, 410. 



The body is elongate, rapidly contracted behind the abdomen, the tail long and whip- 

 like; greatest liight of body (25 millimeters) 9i times in total length. 



Scales moderate, strongly armed, each with 8-10 spinelets irregularly placed, the spine- 

 lets less numerous in the young, which feel bristly to the touch, separated by wide deep 

 furrows (hence the specific name). More than 175 in the lateral line. Between origin of 

 dorsal fin and lateral line 7; counting from the origin of the lateral line the number of scales 

 iu a distance equal to length of head is 33. 



Armature of head similar to that of body, but the scales upon the snout, cheeks, and 

 chin have very feeble spines. Length of head (32 millimeters) 7^ times in total length. 



Interorbital area nearly flat, its length (10 millimeters) equal to <liameter of eye, and a 

 little less than one-third length of head. Postorbital portion of head (15 millimeters) li 



