Nectoteuthis
Nectoteuthis pourtalesi
Michael Vecchione and Richard E. YoungIntroduction
Diagnosis
A heteroteuthin ...
- with mantle free from head dorsally.
- with distal arm suckers on long stalks.
- ventral shield without anterior notch.
Characteristics
- Arms
- Distal suckers on arms with long, thick stalks.
- Web between dorsal arms extensive.
- Or distal suckers absent, replaced by leaf-like lobes (sexual dimorphism??)
Figure. Various views of arms and suckers of N. pourtalesi, holotype. Note the extensive web between arms I. Top left - Dorsal view of arm crown. Top right - Dorsolateral view of arm crown. Note that arm I suckers are elongate. Bottom - Dorsolateral view of arm II suckers. Photographs by R. Young.
- Funnel
- Funnel locking-apparatus with a deep, broad pit anteriorly and an elongate pit posteriorly.
Figure. Funnel/mantle locking-apparatus of N. portieri, holotype, left = anterior. Top - Frontal view of the funnel component. Bottom - Side-oblique view of the mantle component. Photographs by M. Vecchione.
Figure. Oblique view of the funnel/mantle locking-apparatus of N. portieri, showing both components, holotype. Photograph by M. Vecchione.
- Mantle
- Dorsal mantle free from head.
- Ventral mantle shield extends anteriorly past base of arms.
- Anterior margin of shield without median indentation for funnel.
Figure. Ventral (left) and dorsal views (right) of N. pourtalesii, holotype. Photographs by R. Young.
- Fins
- Extend anteriorly beyond the dorsal mantle margin but do not reach the mantle margin posteriorly.
Comments
The holotype (NMNH 729734) presumably is a male judging from the arm sucker modifications. The mantle has not been cut open to verify the sex.
References
Naef, A. 1921-1923. Die Cephalopoden. Fauna e Flora del Golfo di Napoli, Monographie 35, Vol I, Parts I and II, Systematik, pp 1-863.
Verrill, A. E. 1883. Supplementary report on the "Blake" cephalopods. Bulletin of the Museum of Comparative Zoology 11(5):105-115, 3 pls.
Title Illustrations
Scientific Name | Nectoteuthis pourtalesi |
---|---|
Location | Off Barbados |
Specimen Condition | Dead Specimen |
View | Side |
Collection | NMNH 729734 |
Type | Holotype |
Copyright | © Richard E. Young |
About This Page
National Marine Fisheries Service
Systematics Laboratory
National Museum of Natural History
Washington, D. C. 20560
USA
Richard E. Young
Dept of Oceanography
University of Hawaii
Honolulu, Hawaii 96822
USA
Correspondence regarding this page should be directed to Richard E. Young at
Page copyright © 2004 and Richard E. Young
- First online 01 September 2004
- Content changed 30 November 2003
Citing this page:
Vecchione, Michael and Young, Richard E. 2003. Nectoteuthis http://tolweb.org/Nectoteuthis_pourtalesi/20031/2003.11.30 in The Tree of Life Web Project, http://tolweb.org/
. Nectoteuthis pourtalesi . Version 30 November 2003 (under construction).