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Note

Chtenopteryx sepioloides Description Continued

Richard E. Young and Michael Vecchione
  1. Arms
    1. Arms subequal with arms IV slightly the longest.
    2. Arms I-III with suckers in up to 4 series and about 50 transverse rows.
    3. Arms IV with suckers in 2 series.
    4. Sucker dentition unknown.
  2. Tentacular club
    1. Number of transverse suckers unknown.
  3. Fins
    1. Longest fin ribs are 34% of the ML.
  4. Radula
    1. Only 5 teeth present in transverse row.
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure. Drawing of radular teeth of C. sepioloides, 14 mm ML, from Rancurel, 1970.

  5. Gladius
    1. Gladius rhachis with triangular cross-section.

      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure. Drawing of gladius of C. sepioloides, 14 mm ML, from Rancurel, 1970.
Measurements
ML, mm 15 15 18 19
MW, % ML 66.5 77 72.5 63
Fin L, % ML 73 86.5 72 79
Head W, % ML 46.5 53.5 50 50
Arm I, % ML 40 50 ca. 50 42
Arm II, % ML 40 60 ca. 55 47.5
Arm III, % ML 46.5 60 ca. 55 45
Arm IV, % ML 60 70 ca. 55 45.5
Club L, % ML 33.5 33.4 33.4 51.6

Table from modified from Rancurel, 1970.

Comments

The 5-tooth radula is probably a feature of all members of the genus as we have seen the same type in a different species from Hawaiian waters. Accessory nidamental glands could not be detected in the immature females.

References

Rancurel, P. 1970. Les contenus stomacuax d’Alepisaurus ferox dans le Sud-ouest Pacifique (cephalopodes). Cah. O.R.S.T.O.M., ser. Oceanogr., 8: 3-87.

About This Page


University of Hawaii, Honolulu, HI, USA


National Museum of Natural History, Washington, D. C. , USA

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