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Larvae of the Deep Sea Crab Cymonomus Bathamae Dell, 1971 (Decapoda, Dorippidae) With Observations On Larval Affinities of the Tymolinae

Larvae of the Deep Sea Crab Cymonomus Bathamae Dell, 1971 (Decapoda, Dorippidae) With... LARVAE OF THE DEEP SEA CRAB CYMONOMUS BATHAMAE DELL, 1971 (DECAPODA, DORIPPIDAE) WITH OBSERVATIONS ON LARVAL AFFINITIES OF THE TYMOLINAE BY ROBERT G. WEAR Department of Zoology, Victoria University of Wellington, New Zealand and E. J. BATHAM Biological Station, Portobello, New Zealand INTRODUCTION The crab genus Cymonomus has been recorded in deep water from most geographic areas of the world. Dell (1971) lists 12 known species and describes two new species from New Zealand waters, C. aequilonius and C. bathamae. One of us (E.J.B.) has collected the latter species repeatedly in canyons off Otago, southern New Zealand at depths ranging between 200 metres and 800 metres. On 25 May 1971, 13 specimens including nine ovigerous females were trawled from a fine grey mud substrate at 640 metres, 45046'S 171°5'E, using a two- foot Agassiz trawl with bottom sampler. One female, carapace length including short rostrum 5.0 mm, carrying 17 eggs very close to hatching, was returned alive to the laboratory and kept at about 6° C until most of the eggs hatched over the period 25 May to 6 June 1971. Eggs freshly laid measure 1.2 X 1.0 mm with orange coloured yolk, and increase to about 1.4 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Larvae of the Deep Sea Crab Cymonomus Bathamae Dell, 1971 (Decapoda, Dorippidae) With Observations On Larval Affinities of the Tymolinae

Crustaceana , Volume 28 (1): 113 – Jan 1, 1975

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Publisher
Brill
Copyright
© 1975 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
DOI
10.1163/156854075X00973
Publisher site
See Article on Publisher Site

Abstract

LARVAE OF THE DEEP SEA CRAB CYMONOMUS BATHAMAE DELL, 1971 (DECAPODA, DORIPPIDAE) WITH OBSERVATIONS ON LARVAL AFFINITIES OF THE TYMOLINAE BY ROBERT G. WEAR Department of Zoology, Victoria University of Wellington, New Zealand and E. J. BATHAM Biological Station, Portobello, New Zealand INTRODUCTION The crab genus Cymonomus has been recorded in deep water from most geographic areas of the world. Dell (1971) lists 12 known species and describes two new species from New Zealand waters, C. aequilonius and C. bathamae. One of us (E.J.B.) has collected the latter species repeatedly in canyons off Otago, southern New Zealand at depths ranging between 200 metres and 800 metres. On 25 May 1971, 13 specimens including nine ovigerous females were trawled from a fine grey mud substrate at 640 metres, 45046'S 171°5'E, using a two- foot Agassiz trawl with bottom sampler. One female, carapace length including short rostrum 5.0 mm, carrying 17 eggs very close to hatching, was returned alive to the laboratory and kept at about 6° C until most of the eggs hatched over the period 25 May to 6 June 1971. Eggs freshly laid measure 1.2 X 1.0 mm with orange coloured yolk, and increase to about 1.4

Journal

CrustaceanaBrill

Published: Jan 1, 1975

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