DESCRIP'I'TOX Oh' oPIS'l'HOTEUTHIS DEPEESSA X. SP. 33]^ 



chroiiiato])li(:)res were arranued in «freaks that u'enerally ran Avitli 

 iiitcfniption.s, in circular ]>ath,s. On the inferior surface, flie red 

 was princi])a]ly confined to tlie interl)rachial s])aces, the greater part 

 of the arms flieniselves as well as the cirri and suckers l)eing- of 

 light colour. 



The measurements of our specimen are as follows : 



Median diameter of the entire aniirial, 50 mm. 



Transverse diameter across fins, 65 mm. 



Thickness at the middle of head, ;djout (S mm. 



Lenofth of hodv and head, from the hranchial ai)erfure to the 

 level of the anterior borders of eyes, 27 nun. 



Breadth of body proper, about 23 mm. 



Breadth of head across eyes, 2(^ mm. 



Between eye-openings, 22 mm. 



Diameter of eye-bulb, Î) mm. 



Between fin -bases, 17 mm. 



From liase of tin to its tip, 5 mm. 



Thickness of arm near base, 67^ mm. 



Length of dorsal arm, 08 mm. 



Length of 1st lateral arm, 44 mm. 



Length of 2nd lateral arm, 4(S nun. 



Length of ventral arm, 46 mm. 



Length of dorsal web from mouth, 23 mm. 



Length of ventral web from mouth, 27 mm. 



Breadth of lateral web from mouth, 25-27^ mm. 



Diameter of largest sucker, 1 mm. 



Length of longest cirrus, 1^ mm. 

 Of the internal anatomy we can offer only such scanty notes as 

 could be taken after a few incisions made so as to least impair oiu* 

 uni(|ue specimen. 



