124 OSTAEIOPIITSI. 



sides; dorsal shield small, suboresccutio. "Width of mouth | the width of head ; prfcmaxillary band of 

 teeth 5 times as long as broad ; vomerine patches of teeth rounded or quadrangular, separate or 

 subcontinuous, contiguous with the larger rounded or elliptical palatine patches. Masillar}' barbel 

 extending to basal part of pectoral. 4 gill-rakers on the lower part of the anterior arch. Dorsal I 7 : 

 spine nearl}- | the length of head, adipose fin longer than the dorsal. Anal 21-22. Pectoral spine f 

 to I the length of head, weakly serrated. 



Hah. Panama i-s* [Jordan). 



Here described from two specimens, 270 and 280 mm. in total length. 



10. Galeichtliys guentheri, sp. n. (Tab. XVI. fig. 1 and Tab. XIX. fig. 3.) 



Arius milberti (non Cuv. & Yal.), Giintli. Cat. Fish. v. p. 155 (1864) \ 



Depth of body 5^ in the length, length of head 3| to 3|. Breadth of head Ig in its length, diameter of eye 

 G to (jj. Fontanel produced into a groove which nearly or quite reaches the parieto-oooipital ; occipital 

 process keeled, much broader than long, subtriangular, with rounded apex ; dorsal shield small, 

 subcrescentic. Width of mouth i to 4 the width of head ; prcemaxillary band of teeth 4,j times as long 

 as broad ; vomerine patches of teeth verj- small, well separated, separate from or continuous with the 

 oval palatine patches. Maxillary barbel extending to operculum. 9 or 10 gill-rakers on the lower part 

 of the anterior arch. Dorsal I 7 ; spine i the length of head ; adipose fin shorter than the dorsal. 

 Anal 17-lS. Pectoral spine l to g the length of head, weakly serrated. 



Hal. GrLF of Mexico [Haslar Coll.) i. 



Two specimens, 240 and 260 mm. in total length. 



Galeichthys felis, Linn. [Arias milberti, Cnv. & Val., Arius equesfris, Girard), which 

 is known to range from Cape Cod to Texas, is closely allied to G. guentheri, but differs 

 in several respects, notably in having the occipital process as long as broad and in the 

 longer barbels. I have examined a specimen from Xew Orleans. 



11. Galeichthys seemani. 



Arius seemani, Giiiith. Cat. Fi.sh. v. p. 147 (1864) \ 



Galeic/dltys seevianni, Jord. & Everm. Jjull. U.S. Nat. Mus. xlvii. 1900^ p. 2772-. 



Galeichthys jordani (Eigeum. & Eigciim.), Jord. & Evenu. t. c. p. 2774^; Gilb. & Starks, .Mcni. 



Calif. Ac. Sci. iv. 1904, p. 22*. 

 Galeiddhys (jilherti (Jord. & Williams), Jord. & Everm. t. c. p. 2773, fig. 54'. 

 Galeiciithys eiijenmanni, Gilb. & Starks, t. c. p. 21, t. 4. fig. 8". 



Depth of body b-bh in the length, length of head 3i to 4. Breadth of head 1] to IJ in its length, diameter 

 of eye 5i to 7^. Fontaucl produced into a groove which nearly or (juite reaches the parieto-occipital ; 

 occipital process keeled, much broader than long, subtriangular, the apex truncated, the sides straio-ht ■ 

 dorsal shield small, subcrescentic. Width of mouth ^ to 4 the width of head; projmaxillary baud of 

 teeth 5 to 6 times as long as broad ; vomerine patches of teeth quadrangular, rounded or ovate, separate 

 or subcontinuous, subcontinuous or continuous with the larger oval or club-shaped palatine patches 

 ilaxillary barbel extcndiug to opercle or base of pectoral. 10 to 12 gill-rakers on the lower part of the 

 anterior arch. Dorsal 1 7 ; spine f to if the length of head ; adipose fin shorter tlian the dorsal. 

 Anal 16-20. Pectoral spine weakly or moderately serrated, * to | the length of head. 



Hah. Pacific Coast from Mexico to Ecuador : 



jNIazutlan [.Jordan) ■■' ; Panama [.Jordan)" '^-^^ ; Ecuador [Festa). 



