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Histioteuthis sp. A Young and Vecchione

Richard E. Young and Michael Vecchione
Containing group: Histioteuthidae


This is a rather cyclindrical, muscular histioteuthid that is known only from five squid captured in the waters around the Hawaiian Islands.


A Histioteuthis ...


  1. Tentacles
    1. Central suckers just slightly enlarged over marginal suckers.
    2. Suckers of ventral-marginal rows of manus with broad, but nearly symmetrical outer rings.

      Figure. Left - Oral view of a swath across the manus of the club of Histioteuthis sp. A, 41 mm ML, Hawaii. The small suckers on the right are carpal suckers. Right - Oral view of a ventral-marginal sucker of the club, 41 mm ML, Hawaii. Photographs by R. Young.

    3. Medial manal suckers of club with slender teeth only on distal margin of inner ring; proximal margin with small teeth difficult to see under dissecting microscope.

      Figure. Oral view of large, central manus suckers of the club of Histioteuthis sp. A, 41 mm ML,Hawaii.Photograph by R. Young.

    Scanning electron micrographs of the arms and club suckers can be seen here.

  2. Photophores
    1. The Basal Row is comprised of 9 photophores, and forms a distinct sawtooth at left end.

      Figure.Ventral view of posterior edge of head of Histioteuthis sp. A showing the Basal Row, 41 mm ML, Hawaii. Photograph by R. Young.


More details of the description can be found here.

Species of the celetaria-group are characterized by:

  1. Head and arm photophores:
    1. Type 1b pattern on head.
    2. Basal Row of head with 9 or 10 photophores.
    3. Right Basal Series of head absent.
    4. Arms IV with 3 longitudinal series on arm base (drawing below).
       image info

      Figure. Ventral view of arm IV, H. celetaria, 39 mm ML. Drawing from Voss, 1969 (Fig. 15f).

    5. Most species with separate group of 4-8 compound photophores on ends of arms IV (drawing above) (Voss, et al., 1998). Apparently this feature is absent in H. inermis.
    6. Compound photophores of large, uniform size and evenly spaced on anterior 2/3 of ventral mantle.
  2. Tubercles
    1. Absent.

The species differ in the following manner:

Character H. celetaria H. inermis H. pacifica H. sp. A
Club suckers
Asymmetrical outer
sucker rings in:
3 ventral-marginal
sucker series
No asymmetrical rings 2 ventral-marginal
sucker series
No asymmetrical rings
Size of medial
manal suckers:
Slightly larger than
marginal suckers
2 X marginal suckers 1.5 X marginal suckers Slightly larger than
marginal suckers
Large manal-sucker dentition: 12-13 teeth on distal margin 20-27 teeth on entire margin 28-32 teeth on entire margin 15-20 teeth on distal margin
Single sawtooth in
Basal Row photophore pattern:
Yes No sawtooth No sawtooth Yes
Number of photophores in Basal Row: 9 10 9 9

With the exception of the analysis of head photophores and the inclusion of H. inermis in this species group, most of the information presented in this table is from Voss (1969) and Voss, et al . (1998)

Life History

Paralarvae and adults are unknown.


Type locality: Off leeward coast of Oahu, Hawaii.


Voss, N. A. 1969. A monograph of the Cephalopoda of the North Atlantic: The family Histioteuthidae. Bull. Mar. Sci., 19: 713-867.

Voss, N.A., K. N. Nesis, P. G. Rodhouse. 1998. The cephalopod family Histioteuthidae (Oegopsida): Systematics, biology, and biogeography. Smithson. Contr. Zool., 586(2): 293-372.

Title Illustrations
Scientific Name Histioteuthis sp. A
Comments Ventral view, 25 mm ML, Hawaiian waters, preserved. Photograph.
Copyright © 2003 Richard E. Young
About This Page
Drawing from Voss (1969) printed with the Permission of the Bulletin of Marine Science.

Richard E. Young

Dept of Oceanography
University of Hawaii
Honolulu, Hawaii 96822

National Marine Fisheries Service
Systematics Laboratory
National Museum of Natural History
Washington, D. C. 20560

Citing this page:

Young, Richard E. and Vecchione, Michael. 2003. Histioteuthis sp. A Young and Vecchione. Version 01 January 2003 (under construction). http://tolweb.org/Histioteuthis_sp._A/19797/2003.01.01 in The Tree of Life Web Project, http://tolweb.org/

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Histioteuthis sp. A

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