New Zealand Journal of Marine and Freshwater Research abstracts

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DIMENSIONS OF LONG-NOSED CHIMAERA HARRIOTTA RALEIGHANA FROM NEW ZEALAND

J. A. F. Garrick

Zoology Department, Victoria University of Wellington, Private Bag, Wellington, New Zealand

T. Inada

Japan Marine Fishery Resource Research Center,
Godo Kaikan Building, 3-4 Kioicho, Chiyoda-ku,
P.O. Box 102, Tokyo, Japan

Abstract The proportional dimensions of 66 adult specimens of Harriotta raleighana Goode & Bean, 1895 (Holocephali: Rhinochimacridae) from New Zealand are summarised; in both sexes there is considerable variation in proportions. Within the size range of the sample, the snout region of males is proportionately longer than that of females, and growth of the snout is negatively allometric in both sexes. Meagre data suggest that similar sexual dimorphism and allometry occur in North Atlantic specimens, though very large and very small specimens do not fit an extrapolation of the New Zealand data. None of the New Zealand males has the snout tip upturned and armed with large rounded knobs as described for North Atlantic males.

N.Z. Journal of Marine and Freshwater Research 9 (2): 159-67
(Received 21 May 1974; revision received 5 December 1974)

PDF file of entire paper: medium quality (628K); (scanned from paper original: notes about this process)

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