CEPHALOPODA OF THE HAWAIIAN ISLANDS. 



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Type. — L&tmoteuthis lugubris Berry 1913, a species of the Hawaiian Islands. 



The genus is closely allied to both Cirroteuthis and Stauroteuthis , but differs in the absence of paired 

 cirri and the presence of an odontophore. 

 Laetmoteuthis lugubris Berry 1913. (PI. xux, fig. 1, 2.) 



Cirroteuthis (?) sp. Berry 1909, p. 418 (mere record). 

 Ltetnwteuthis lugubris Berry 1913, p. 563. 



Bodv large, rounded posteriorly. Lateral fins situated well back on the mantle, but small, 

 transversely elongate, their greatest dimension (width) about twice as great as their length (fig. 2). 

 Funnel thin walled, very large and 

 broad; interior ample. Eyes prob- 

 ably large. 



Arms long, appearing merely as 

 thickenings or soft folds in the 

 broad and ample umbrella and with- 

 out any intermediate web connecting 

 them thereto. Umbrella longest be- 

 tween the ventral arms, but every- 

 where extensive though very thin. 

 Suckers large, flattened, distant; in 

 a single series, though frequently 

 somewhat zigzag; slightly, but not 

 much, firmer in texture than the 

 arms or umbrella; round-tubercular 

 in shape; the apertures contracted, 

 their margins crenulate. Paired cirri 

 indistinguishable . 



Mandibles large, compressed; 

 but, with the exception of the sharp 

 powerful beaks, thin and compara- 

 tively fragile; color black, horny at 

 margin. (PI. xlix, fig. 1, 2.) 



A very large and perfectly de- 

 veloped radula present; of the seven 

 rows of teeth the tricuspid medians 

 are considerably the largest. 



Surface color a livid dark brown- 

 ish slate, with a somewhat bluish 

 cast over the inner surface of the 

 umbrella in preserved specimens. 

 The label accompanying the type contains a note to the effect that the color of the specimen when 

 captured was chocolate brown. Chromatophores small, numerous, and heavily distributed over the 

 entire surface. 



Measurements op L/ETmoteuthis lugubris. 



Fig. 



L&tmoleuthis lugubris, intraumbrellar aspect of type, considerably 

 restored [211], X K- Drawn by R. L. Hudson. 



