DISCISSION OF SPECIES AND THEIR DISTRIBUTION. 171 



supplementary ray behind the last. The anal spines are longer than the dorsal spines, the 

 longest two anil one half times the diameter of the eye. The first, vrhich is somewhat longer 

 than the firsl dorsal spine, situated behind the \ent and under the eighteenth dorsal spine. 



In the specimen figured and described by Yailiant there is a semblance of a minute. 

 separate caudal fin, but it is by no means certain that this exists. The pectoral is placed 

 a considerable distance from the operculum, nearly equal to the length of the snout, and 

 its lower axil is in the median line of the body, or nearly so. Its length is about equal 

 to 1 hat of the snout. The vent rals, situated at a distance from the snout equal to about 

 one-third of the length of the body, do not reach the anus, and are the same size as the 

 pectorals. In Vaillant's specimen they appear to be separate, and he was able to observe 

 but a single spine. The color, in fresh condition, was milky white; the head and iris black. 



Radial formula, D. 29-37; A. 34-41. 



This species was known to Risso, who had in his collection the specimen which after- 

 wards served De Filippi as a type and which is now in the Turin Museum. A sketch by 

 Eisso, of this fish, is here reproduced. The Turin specimen was examined by Prof. Giglioli 

 in 1882: it is 160 millimeters long and has the following radial formula: D. 29/1; A. 35. 



Prof. Giglioli has three specimens in his collection at Florence. We are indebted to 

 him for the following details concerning them: 



a. Nice, August 5, 1881 (typo of Paradoxichthya Qaribaldianw) : Total length, 199 millimeters. D. 32/0; A. 

 38/100; P. 9-10; V. 1-10; C. 4?. This specimen has a long, straight spine, pointed backwards, above the 

 maxillary bone on either side. 

 6. Nice. March 1, 1891: Total length, 186 millimeters. D. 30 1; A. 41/150; P. 10; V. 1/10C.4?. Found dead 



and partly decomposed. The peculiar maxillary spine is small in this and in the following specimen, 

 c. Nice. January L'7. 1892 : Total length, 160 millimeters. D. 30/0; A. 34/?. Found partially digested in the 

 stomach of Galena canis. 



In addition to these specimens, one other was taken by the French expedition off the 

 coast of Morocco, station 40, at a depth of 2,212 meters. Its radial formula was D. 37/1; 



A. 27/1 



MACDONALDIA, Goode and Bean, n. g. 



Notacanthids, with elongate body and inferior mouth. Body and head covered with 

 minute, imbricated scales. Dorsal fin represented by numerous short, straight, robust and 

 disjoined spines, 27 to 34 in number, the first in advance of the insertion of the pectoral. 

 Anal as in Wotaccmthus, but lower, and with a longer portion of low, short, slightly curved, 

 disjoined spines, from 35 to 55 in number, which under the final dorsal spines pass into flexi- 

 ble rays. Lateral line straight, conspicuous. Pectorals moderate, placed far back, below 

 the middle line of the body, and remote from the lateral line. Teeth in jaws erect, small; 

 and also in series on the vomer and palate. A line of pores on the inner edge of the mandi- 

 ble. Ventrals moderate, entirely separate. 



This genus is named in honor of Col. Marshall MacDonald, U. S. Commissioner of 

 Fisheries, in commemoration of his liberal policy in furthering ichthyological research. 



MACDONALDIA ROSTRATA, (Collett), Goode and Bean. (Figures 189; 195 A, B.) 



Noiacanthns rosiratus, COLLETT, Hull. Soc. Zool., France, 1889, 307. 



The body is greatly compressed, its outlines tapering rapidly in both directions from 

 the origin of the vent. Its greatest height is contained 3i times in the distance of the vent 

 from the tip of the snout, or about four fifths the length of the head, which is contained 94 

 times in the total. The snout is compressed, pointed, snake like, produced beyond the mouth 

 a distance less than the diameter of the eye and contained 3 times in the length of the 

 head. The mouth is small; its cleft scarcely reaches to the anterior nostril. Each jaw is 

 armed with a series of minute teeth and a similar series on vomer and palate. The eye is 

 moderate in size, placed not far from the dorsal profile, distant about 2 4 diameters from 

 the end of the snout, more than 3 diameters from the end of the onercle. Gill opening wide. 



