DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 403 



month wide, lateral, exteiulmg to bcyoiHl tlie center of the eye; interinaxillary not iimcL 

 shorter thau the maxillary. Teeth iu villiforiu bands in 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 long is eqnal to the length of the snont and one-fourth of that 

 of the head. The smles are ecjually rougli over the whole of their snrtaee, all the spinelets 

 being du-ected backwards; tliere 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. 11); V. 7. {Giinthcr.) 



Goryphwnoides rupesfris has 4 + lo 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 band at the sym])hysis and becoming 

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

 longer and less tubercular iu character than iu M. bvrgJnx and M. acrolepis. The sub- 

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

 front of the eye where it joins the nasal ridge. In M. bcrglax and M. acrolepis 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 Porvnpine and Knight Errant between Shet- 

 land and the Faroes in 200-500 fiithoms. A single specimen was secured by the Blake from 

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

 Albatross obtained examples from station 2532, in 40o 34' 30" N. hit., 06° 48' W, Ion., at 

 a depth of 705 fathoms; Cat. IS^o. 35601, U. S. N. M., from station 2238, iu 39° 06' N. hit., 

 72^ 10' W. Ion., at a depth of 904 fathoms; Cat. No. 32657, TJ. S. X. M., from station 2003, 

 in 370 10' 30" N. hit., 74= 20' 3(;" W. Ion., at a depth of 641 fathoms; from station 254(), 

 in 39-= 53' 30" N. lat., 70° 17' 30" W. Ion., at a depth of 538 fathoms; from station 2549, 

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

 420 55' 30" N. lat., 50° 51' W. Ion., at a dei)th of 471 fathoms; from station 2078, in 41° 

 11' 30" N. hit., 06^ 12' 20" W. Ion., at a depth of 499 fathoms; Cat. No. 35508, U. S. N. 

 M., from station 2202, iu 39= 3^' 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 677 fathoms; and 

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

 The Fish Eawk 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. I\r., from station 1029, in 39° 57' 05" N. lat., 69= 16' 

 W. hm., at a depth of 458 fathoms. A single individual (Cat. 26347, U. S. N. M.) was 

 captured by the schooner G. F. Whitman oft' the southern part of Bauquereau. 



CORYPIL-ENOIDES SULCATUS, Goode and Bean. 



Coryphanoides sulcntiis, Goode and Be.yx, Proc. U. S. Nat. Mns., 1888, 596. 

 Trachonunts sulcalus, Goope and Bean, Oceanic Ichthyology, 1893, 410. 



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

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



Scales moderate, stiongly 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 deej) 

 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 lateralline the number of scales 

 in a distance eqnal to length of head is 33. 



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

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



Interorbital area nearly fiat, its length (10 millimeters) equal to diameter of eye, and a 

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



