Pteroctopus schmidti (Joubin 1933)

Pteroctopus schmidti (Joubin, 1933)

DIAGNOSIS.—Immature male small (57 mm TL; 20 mm ML). Mantle moderate in width (MWI 78), rounded posteriorly; head moderately broad (HWI 68.5), slightly set off from mantle by weak neck constriction; eyes deeply set into head. Funnel organ very distinct, VV-shaped, inner and outer limbs subequal in length; funnel with knob-like protrusion at each distal corner near edge of mantle. Arms moderately short (ALI 61.4), arm order I = II = III > IV. Suckers small (SIn 4.6); especially enlarged suckers absent; arms I, II, and III (with exception of right arm III) with 102–107 suckers per arm, arms IV with 98 suckers per arm. Right arm III hectocotylized, slightly shorter than fellow (FAI 91.2); HASC 69; calamus and ligula immature, small, simple. Web deep (WDI 54.3), web formula A>B = C = D > E; edges of adjacent web sectors fused into single pallisades-like keel extended along aboral surface of each arm. Ink sac present; gill lamellae 9. Immature penis small, simple, with simple, bulbus diverticulum. Radula not examined. Pair of moderately sized suprocular cirri and several smaller papillae above each eye; surface of mantle and head finely papillate. General color in preservation (alcohol) light grey without evidence of color patterning.

ORIGINAL DESCRIPTION.—Joubin, 1933:4, as Danoctopus schmidti.

TYPE LOCALITY.—Western North Atlantic Ocean, off Abaco, Bahamas, R/V Dana sta 1239-XIV, 25°50′N, 76°55′W, 12.2.1922, 1666 m.

TYPE.—Holotype: ZMK, male (immature), 57 mm TL, 20 mm ML, in alcohol, good condition.