DoryteuthisMichael Vecchione and Richard E. Young
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Doryteuthis species are the common inshore squids of American waters. Several species (e.g., D. pealeii, D. opalescens) are targets of substantial fisheries. The genus is defined by geography and the absence of specific modifications that define other genera.
A loliginid ...
- with fins in adults rhomboidal, longer than broad, (length <70% of ML); mantle elongate, pointed posteriorly; cement body of spermatophore short.
- with a distribution in waters off the Americas.
- Ventral crest absent.
- Proximal suckers unmodified.
- Distal suckers of reduced size, sucker stalks elongated to form papillae in either dorsal or both dorsal and ventral series.
- Tentacular clubs expanded, suckers in four series.
- Fins extend to posterior tip of mantle.
- Photophores absent.
- Eggs less than 4 mm.
- Spermatophore cement body short.
The genus is subdivided into three subgenera, two of which are named, D. (Doryteuthis) and D. (Amerigo). Species of D. (Doryteuthis) have the modified portion of the hectocotylized arm extending to the arm tip, and the edges of gladius vane are thickened, while in D. (Amerigo) neither of these conditions hold. Doryteuthis sanpaulensis does not belong in either of these subgenera and was considered by Vecchione et al. (2005) to be the sole recognized species in an undescribed subgenus.
Figure. Oral view of the distal region of the hectocotylus of D. (Doryteuthis) plei, 105 mm ML, off S.E. USA, preserved. Photograph by R. Young.
Although we tend to think of squids as constantly swimming, D. (A.) pealeii is often observed sitting on the ocean floor or the bottom of an aquarium.
Vecchione, M., E. Shea, S. Bussarawit, F. Anderson, D. Alexeyev, C.-C. Lu, T. Okutani, M. Roeleveld, C. Chotiyaputta, C. Roper, E. Jorgensen and N. Sukramongkol. 2005. Systematics of Indo-West Pacific loliginids. Phuket Mar. Biol. Cent. Res. Bull. 66: 23-26.
Correspondence regarding this page should be directed to Michael Vecchione at
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- First online 25 January 2006
- Content changed 02 September 2010
Citing this page:
Vecchione, Michael and Richard E. Young. 2010. Doryteuthis http://tolweb.org/Doryteuthis/23877/2010.09.02 in The Tree of Life Web Project, http://tolweb.org/. Version 02 September 2010 (under construction).