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Show :M:A.M:MALIA. 25 FAMILY-D ELPHINIDJE. DELPHINus FrrzRon. PLATE X. D. S?tpra niger; capitis cmporisque lateribus, corporerzue subtus niveis; caudd, pedibus, labioque i?iferiore, nirp·is; fasciis latis duabus per latus utrumque oblique excur?' entibus, nigresceuti-cinereis, ltujusque co/oris fascia utrinque ab angulo oris ad pedem tendenle. DESCRIPTION.-Uppcr parts of the body black, under parts pure white, the two blended into each other by gray: extremity of snout, a ring· round the eye, the edge of the under lip, and the tail fin, black ; dorsal and pectoral fins dark gray; a broad gray mark extends from the angle of the mouth to the pectoral fin; above which, the white runs through the eye and is blended into gray over the eye; two broad deep-gray bands nrc extended in an oblique manner along each side of the body, running from the back downwards and backwards; iris of eye dark brown. Body anteriorly somewhat depressed, posteriorly compressed; head conical, arched above; the lower lip projecting beyond the upper; eye placed above and behind, but near the angle of the mouth ; breathing vent situated in the same line as the eyes-supposing a circle to be taken round the head. Teeth slightly curved, and conical; in the upper jaw twenty-eight in number on each side, and in the lower, twenty-seven. Total length (measuring along tho curyo of back) Length from tip of muzzle to vent to dora! fin to pectoral to oyo to breathing aperture (following curve of head) to angle of mouth of dorsal fin along the anterior margin Height of do. . Length of pectoral, along anterior margin Width of tail . . • Girth of body before dorsal fin . boforo pectoral fin before tail fin of head over tho eyes . Habitat, coast of Patagonia, Lat. 42° 30', (April.) E Ft. 5 3 2 1 0 0 0 1 0 1 1 3 2 0 In. Lines. 4 0 10 9 6 5 4 5 9 9 10 7 7 9 0 5 G 4 2 8 4 5 0 6 8 2 7 8 0 0 |