Leachia dislocataRichard E. Young and Katharina M. Mangold (1922-2003)
A Leachia with ...
- a complex tubercule, displaced medially, at anterior end of mantle strip.
- adult having completely sessile eyes.
- On the adult eyeball, eight photophores comprise the outer series and the inner series (i.e., near the lens) consists of 7 photophores: two small photophores dorsal to the lens and five, three large organs alternate with two small ones, ventral to it. Click on an image to view larger version & data in a new window
- On the adult eyeball, eight photophores comprise the outer series and the inner series (i.e., near the lens) consists of 7 photophores: two small photophores dorsal to the lens and five, three large organs alternate with two small ones, ventral to it.
The distinctive displaced tubercule on the cartilagenous strip is shared with Leachia pacifica.
The paralarva or the "pyrgopsis stage" has stalked eyes and few if any ocular photophores. The mature female has sessile eyes with a full compliment of photophores, relatively longer arms and photophores on the tips of arms III.
Ocular photophores are gradually added through growth.
The type locality is 32°35'N, 118°06'W, off southern California in the eastern North Pacific. Also known from off the Pacific coast of Baja California at 27°45'N (Okutani, 1979).
Okutani, T. 1974. Epipelagic decapod cephalopods collected by micronekton tows during the EASTROPAC expeditions, 1967-1968 (systematic part). Bull. Tokai Reg. Fish. Res. Lab., 80: 29-118.
Voss, N. A. 1980. A generic revision of the Cranchiidae (Cephalopoda; Oegopsida). Bull. Mar. Sci. 30: 365-412.
Young, R. E. 1972. The systematics and areal distribution of pelagic cephalopods from the seas off Southern California. Smithson. Contr. Zool., 97: 1-159.
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- Content changed 16 November 2016
Citing this page:
Young, Richard E. and Katharina M. Mangold (1922-2003). 2016. Leachia dislocata http://tolweb.org/Leachia_dislocata/19588/2016.11.16 in The Tree of Life Web Project, http://tolweb.org/. Version 16 November 2016 (under construction).