Oh my goodness! Unless you are a Tree of Life developer, you really shouldn't be here. This page is part of our beta test site, where we develop new features for the ToL, often messing up a thing or two in the process. Please visit the official version of this page, which is available here.

Opsithoteuthis californiana Measurements

Richard E. Young and Michael Vecchione
Sex Female Holotype Female Paratype Male
Total length, mm 295 340 415+
Spread (arm tip to arm tip) 305 360 435
Mantle width 69 70 90
Fin span 98 110 145
Head width - - 90
Fin length (right/left) 17/14 25/21 30/30
Fin width 11/14 18/12 14/17
Arm I, length 145/140+ 170/170 185+/165+
Arm II, length 150/150 145+/165 185/205
Arm III, length 160/165 165/160 210/220
Arm IV, length 170/165 150/160 220/220
Diam. sucker no. 10, arm I 1.5 2 -
Diam. sucker no. 6, arm I - - 9
Max. diam. distal sucker, arm I - - 11
Depth web sector A 85 85 120
Depth web sector B 85/95 105/80 135/75+
Depth web sector C 95/110 120/80 115/120
Depth web sector D 105/105 120/105 95/130
Depth web sector E 110 115 115


These measurements are from Berry (1949) and Berry (1955).


Berry, S. S. 1949. A new Opisthoteuthis from the eastern Pacific. Leaflets in Malacology, 1 (6): 23-26.

Berry, S. S. 1955. The male flapjack devilfish. California. Calif. Fish and Game, 41: 219-22

About This Page

University of Hawaii, Honolulu, HI, USA

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

All Rights Reserved.

close box

This page is a note that is attached to a leaf of the Tree of Life.

ToL notes provide brief accounts of characteristics, short summaries, commentaries, media files, taxonomic information, or identification tools for a given group of organisms.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box

Opisthoteuthis californiana

Page Content

articles & notes



Explore Other Groups

random page

  go to the Tree of Life home page