Euprymna morsei

Scientific Name:-

Euprymna morsei

Common Name:-

Mimika bobtail squid

Malayalam Name:-

Cheru Kanava

Category:-

Mollusca

Status:-

Not evaluated

Description:-

Fresh specimens whitish with numerous large and conspicuous purplish brown chromatophores on mantle, head and arms; chromatophores more dense on dorsal side than ventral; fins devoid of chromatophores except for a small portion on bases. Specimens preserved in formalin pale brown with clear chromatophores. Small sized species. Mantle short, broad, saccular and rounded posteriorly; mantle and head united by dorsal commissure in the nuchal region; head free from the mantle opening except for connective commissure. Fins rounded, semi-circular in outline. Funnel long and tubular, reaching the base of the ventral arms; funnel valve short, triangular. Arms long, slender and subequal in length; arm formula II>III>IV>I. Arm suckers tetraserial. In males the left dorsal arm hectocotylised, sucker pedicles enlarged and tightly packed to form 2 double rows of columnar structures; proximal end of the arm with single nipple like papilla present. Tentacular club suckers extremely numerous, minute, spherical or cup-shaped. Pair of bean-shaped light organs present on ink sac. Gladius absent.

Threats:-

Not recorded

Remark:-

: It is caught on a very small scale from Kerala coast and occurs primarily as bycatch.

Habitat:-

Benthopelagic.

Synonyms:-

Euprymna similis (Sasaki, 1913); Inioteuthis morsei Verrill, 1881

References:-

Silas, E. G. (Ed.) (1985). Cephalopod bionomics, fisheries and resources of the exclusive economic zone of India. Bull. Cent. Mar. Fish. Res. Inst., 37: 195pp.
Sreeja, V. (2013). Taxonomy and diversity of cephalopods (Mollusa: Cephalopoda) of Kerala coast. PhD Thesis submitted to University of Kerala, India.

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