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Show 28 PROF. T.J.PARKER ON CARCHARODON RONDELETII. [Jan. 18, Specimen D.-Female, 17 ft. (about 5 metres) long. The second specimen referred to in the preceding paragraph was caught about a fortnight later than the first, and was also brought entire to Dunedin for exhibition. The funds of the museum would not allow of its purchase, and indeed my assistants were at the time so fully occupied with the preparation of the larger specimen, that it would third day after capture, the viscera were removed, and to make some notes on those organs which were too much decomposed in the former specimen. Specimen E.-Foetus (female), 55 cm. long. For this I am indebted to Mr. E. P. Ramsay, F.L.S., Curator of the Australian Museum, Sydney. I may also mention that, as I am informed by m y friend Prof. A. P. Thomas, a specimen of Carcharodon, fully 30 ft. long, was caught at Auckland a few months ago. It would seem, therefore, that in spite of its apparent scarcity in museums, Carcharodon rondeletii must be a tolerably common species in the Southern Seas. I. External Characters. As the small specimen described by Smith, in his ' Zoology of South Africa,' appears to be the only one of which careful measurements have been taken, it seems advisible to give a fairly complete series of measurements of specimen C, the largest which has come under m y notice. centim. Total length from tip of snout to tip of upper lobe of tail-fin (following the curve) 577 Total length in a straight line 552 From tip of snout to 1st dorsal fin (anterior border) 202 From tip of snout to anterior border of pectoral fin . . 155 From posterior border of pectoral to anterior border of pelvic fin 152 From posterior border of pelvic to anterior border of ventral (anal) fin 60'8 From posterior border of ventral (anal) to root of caudal fin 40"4 Girth immediately cephalad of 1st dorsal fin 296 Height of first dorsal fin 45*6 Breadth „ ,, at base 53 Height of second dorsal fin 7 Breadth „ „ at base 8 Length of pectoral fin, along anterior border 103 Breadth „ „ at base 58 Length of pelvic fin, along outer border 30 „ ,, „ inner border 41 Breadth „ „ at base 19 PI eight of ventral (anal) fin 11 Breadth ,, „ „ at base 9 |