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U. S. V. R. R. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



region, which is yellowish. Tiic dorsal, caudal, ventrals, and anal are purplish red, the latter 

 exhibiting a yellowish streak or vitta along its base. The pectorals are more of a yellowish hue. 



This species inhabits the bay of San Francisco, California. 



The specimen figured, on being opened, was found to contain twenty young ones, of an 

 average length of eight-tenths of an inch (Plate XXVI, figs. 5 and 6). The body is sub- fusiform, 

 scaluless, deepest anteriorly, and terminated by a rounded head, with the cleft of the mouth 

 but slightly apparent. The remnant of the yolk forms a yet prominent abdominal hernia-like 

 bag. The eye consists of a mere layer of black pimentum. The pectorals and ventrals have 

 .not made their appearance yet. There are but seven very short spines visible in the dorsal fin. 

 The articulated rays of the dorsal and anal are proportionally very long, but the posterior ones 

 do not yet extend beyond the base of the caudal, being, therefore, more similar to the adult. 

 The anal spines are not yet to be seen. The caudal is lanceolated, its central rays being 

 much longer than the lateral ones, in which respect this fin difiers widely from the shape it 

 assumes in the adult fish. 



Plate XXXI, fig. 1, represents Emhiotoca lineata, from the bay of San Francisco, somewhat 

 reduced in size. 



Fig. 2 is a transverse section across the line of greatest depth of the body. 



Fig. 3, a scale from the dorsal region. 



Fig. 4, a scale from the lateral line. 



Fig. 5, a scale from the abdominal region. 



Plate XXVI, fig. 5, represents the young, size of life, taken in the ovaries of the specimen 

 above figured. 



Fig. 6, same as fig. 5, enlarged three times. 



List of specimens. 



Calal. 

 No. 



534 

 535 

 536 

 537 

 538 



No.of Sex and 

 specs, age , 



Adult. 



Locality. 



When 



collected. 



San Prancisco, Cal 1853 



do 1853 



Tomales Bay , Cal 1855 



San Francisco, Cal 1853 



do 1853 



Presidio, Cal 1853 



Whence obtained. 



Nature of 

 specimens. 



Collected by — 



Lt. R. S. Williamson.... Alcoholic . 

 do .do. .... 



Dr 



Heermann . 

 ..do 



Mr. E. Samuels do Mr. Samuels ... 



Lt. R. S. Williamson do Dr. Newberry . . 



Lt. A. W. Whipple ' do I Dr. Kennerly . . 



Lt. W. P. Trowbridge. ..'... .do Lt. Trowbridge. 



5. EMBIOTOCA ORNATA, Grd. 

 Platu XXVI, Fw. 11. 



Spec. Char — General form siih-olliplical. Posterior extremity of maxillary exlenJing to a vertical line which would pa9i! 

 behind the posterior nostrils. Eyes of medium size. External margin of anal nearly straight ; ita origin being opposite the 

 fifth articulated ray of dorsal. Tips of pectorals fiilling under the vertical of the tenth dorsal spine. Insertion of ventrals 

 situated under the fifth dorsil spine. Branchiostegals five in number. About sixty-four scales in the lateral line. Color dark 

 brown above, flanks and abdomen yellowish golden with purple stripes along the line of union between the rows of scales . 

 Scales on thoracic region provided with a central purple spot. 



Stn. — Embiotoca I'uieata, Gno. in Proc. Acad. Nat. Sc. Philad. Vil, 1854, 151. 

 Emkiotoca orntUa, Quo. in Proc. Acad. Nat. Sc. Philad. VII, 1855, 321. 



