434 PROCEEDINGS OF THE ACADEMY OF [May. 



agree with Regan's description. 9 Surely, his figure on Plate 2.3 is 

 also identical, though the legend reads Pseudauchenipterus paserc- 

 while on Plate 24 it reads as the present species, and thus the latter 

 is truly P. paseu. 

 Pseudauchenipterus nigrolineatus sp. nov. Fig. 5. 



Head 3f ; depth 3f ; I), i, 6; A. hi, IS; P, i, 6; V. i, 7; head width 

 1 T V its length; head depth at occiput li; snout 3^; eyeSf; maxil- 

 lary 3f; mouth width 2f; interorbital 1£; antero-internasal 3j; pec- 

 toral lyoj ventral 1J; third simple anal ray l|; least depth caudal 

 peduncle 2%. 



Body compressed, anteriorly robust, deepest at dorsal origin, and 

 edges all convex. Caudal peduncle well compressed, least depth 

 about If its length. 



Head robust, upper profile nearly straight from snout tip to dorsal 

 origin and little more inclined than lower profile, slightly convex sides 

 a little converging above and very broad below, with under surface 

 convex. Snout broadly depressed, its length about If its greatest 

 width. Eye ellipsoid, inclined a little posteriorly, about midway in 

 depth of head near first third head length, as seen in profile. Adipose 

 eyelid well developed, completely covering eye. Mouth small, broadly 

 transverse, commissure short. Band of villiform teeth in each jaw, 

 moderately broad, and these dental areas simple. No other teeth in 

 mouth. Tongue broad, fleshy, thick, not free, depressed. Maxillary 

 barbel slender, reaches about § in depressed pectoral spine. Four 

 equally spaced mental barbels, outer reaches about middle in de- 

 piessed pectoral spine and inner about first tenth. Internasal spaces 

 about equally spaced, and space between front and hind nostril about 

 2 in internasal. Interorbital broad, depressed, and with very slight 

 concave transverse area anteriorly. Frontal region with bones 

 greatly perforate or honeycombed, and median fontanel opening 

 broadly in front. Occipital and lateral contiguous bones, also pre- 

 dorsal plate, all finely rugose-striate. ( )percle broadly triangular, 

 and like all skin on side of head and snout, smooth. Antero-supra- 

 orbital process swollen . 



Gill-opening extends froward last ^ in head. Bakers S + 14, 

 short, firm, mostly well bifurcated, about 2h in filaments. Fatter 

 about equal eye. No pseudobranchiae. Branchiostegals 4, slender, 

 rather long. 



Body covered with smooth skin. Head rugose on portions men- 



9 Pvw. Znnl. Soc. London, Jan.-April, 1906, p. 387. 



