49 



are completely covered with scales. Our two specimens measure 25 and 

 26 inches in length. 



Locality : Gulf of California, off the San Ignacio Eiver, Sonora. We 

 found them very abundant at this locality. 



PMSTIPOMATID^. 



H^MULON FLAVIGUTTATUM, Gill [No. 17543]. 



ffcemulon flavigutiatus, Gill, Proc. Acad. Nat. Sci. Phila., 1862, 254. — Steindaciinek, 



Sitzb. Akad. d. Wiss., Ixxii, 1875, Ichthyologische Beitrage, iii, 14. 

 Hcemulon margaritiferum, Gunther, Trans. Zool. Soc. London, vi, 1869, 419, pi. 65, f. 2. 



D. ]2jL. A. -f-Q. L. lat. 53 to the caudal fin ; 61 to its termination 

 on the caudal fin. L. trans, -f-^. 



The measurements of our specimen agree with Professor Gill's, except 

 in the lengths of the eleventh, twelfth, and thirteenth dorsal spines, 

 which are subequal and shorter than the second spine. Total length 12 

 inches. 



Locality : Lower California. 



XBNICHTHYS CALIEORNIENSIS, Stein. [No. 17541]. 



Xenichthys californi6nsis, Steindachner, Sitzsber. Ak. Wiss. Munich, Ixxii, 1875. Ich- 

 thyologische Beitrage, iii, p. 3. 



We arrive at a positive identity of our species by comparison with 

 Dr. SteiDdaehner's excellent description. We may add, however, 

 that the longitudinal bands above the lateral line are much more dis- 

 tinctly defined and of a darker color than those below. The upper are- 

 blackish-brown, and there are some irregular markings between them. 

 There are always three bands above the lateral line ; while those below 

 may vary from four to five. The whole surface of the body, except 

 the under parts, is covered with minute brown points. 



Locality : Oerros Island, Pacific coast of Lower California. 



PEISTIPOMA LEUCISCUS, GtJir. [No. 17539]. 



Pristipoma leuciseus, Gunther, Proc. Zool. Soc, 18G4, 147 ; Trans. Zool. Soc, vi, 1869, 

 416, pi. 56. f. 3. 



D. llyxlig. A. |. L. lat. 51. L. trans. \-^. 



Darker above the lateral line than below. A black spot posteriorly in 



the axil of the pectoral fin. A dark longitudinal line, rather indistinct, 



corresponding to the center of each row of scales on the sides. The fins, 



and the scales on the sides and breast, dotted with minute points of 



Bull. N. M. No. 7—4 



