[70 "TERRA NOVA" EXPEDITION. 



is. Teuthowenia antarctica, Chun. Figs. 41-43. 



Tt'iillioii-, iiin initinrlli-ii, Chun, " Valdivia '' Exp., part I, Oegopsicla, pp. 376-!), pi. 56, figs. 1-3, 

 pi. r>7, ii-s. :i-7, 1910; Pfoffer, Plankton Exp., pp. 745-0, 1912. 



Station 113, off North island. New Zealand, 33 12' S., 171 05' E., 3 in., 50-mesli 

 net, plankton, Aug. 9th, 1!)11. One and also (?) a damaged specimen. 



Station 129, oft' Three Kings Islands, surface, square 18 -mesh net, plankton, 

 Aug. 2<!th, 1911. Two. 



The damaged specimen from Station 113 has a mantle-length of 5 mm., and only 

 the peduncles of the eyes are present. A few stalked suckers were observed on each of 

 the minute arms, and also on the battered tentacles ; they appear to have been arranged 

 on the stem as well as club of the latter. The neck seems to be a little longer in pro- 

 portion than in the other specimen from this haul, which has a mantle-length of 7 mm. 

 This latter has the tentacular suckers with four teeth on distal margin of ring, and the 

 suckers of the stems are arranged in four rows, nearly, if not quite, to the mouth. 

 Two large dark chromatophores are present on the dorsal surface of the head and eyes ; 

 those of the mantle are more oblong than in Chun's illustration, but the ventral 

 luminous eye-organs are exactly as in his specimens (op. cit., pi. 57, figs. 3, 4, 5). 



The examples from Station 129 have a dorsal mantle-length of 11 and 12 mm. 

 The funnel does not quite reach the base of the arms in the largest specimen, but 

 extends a little above this level in the smaller example. The fins are mutilated in 

 the larger specimen, but measure about one-eleventh of the mantle in the other, and 

 their attachment is very similar to that figured by Pfeffer ('12, pi. 48, fig. 9) for 

 Teutliowenia uit'(/(t/<>j>x (Proseh). Order of arms in both : 3, 2, 4, 1. 



The smaller specimen has about six pairs of stalked suckers on the dorsal arms, 



eight pairs on the second, eleven pairs on the third, and about five pairs on the ventral 



arms. The horny rings are missing from many suckers ; one or 



, two present showed a papillary area and an apparently smooth ring. 



Eight to twelve pairs of suckers occur on the arms of the other 



Fi<!. 41. Tfiitl/n- specimen. The tentacles in both examples have the suckers in 



antarchca, f our rowS) except for about, the proximal two rows of the stem, 

 lower mandible, 



x 4 where they are usually placed two in a row. Several suckers of 



the club showed two sharp teeth on the distal part of the ring, 

 and others were obviously missing. The lower mandible of the larger specimen 

 is figured (Fig. 41). 



In the radula (Figs. 42-43) the median teeth of each row possess a long central 

 denticle, and small, blunt lateral cusps. The first and second laterals are nearly the 

 same size as the median tooth. The outer lateral teeth, and the oval plates beyond 

 them, are like those of J)<'fs>in>t< i n.tliix hyperborea (Steenstrup), as figured by Verrill 

 ('<S2, pi. 45. fig. 2) under J). fi'in'in, Verrill. Except that the first laterals have a 

 cusp at the left, side, the only indication of which, in T. nnfnirtico, is an extension of 



