NEREIDAE 



107 



T2mm 



Of the specimens from Hermite Island, Cape Horn, the largest measures 105 mm. by 

 7 mm. including the feet, and one is an epitocous female. The various lamellae of the 

 feet (Fig. 37) are not so fully developed as those figured by Ehlcrs (1897, pi. v, 

 fig. 106) and presumably the meta- 

 morphosis is not complete. It is, 

 however, noteworthy that the 

 change to the epitocous condition 

 of the feet begins on the 22nd 

 chaetiger. According to Ehlers in 

 P. diimerilii the change begins from 

 the 2 1 St foot and in P. magalhaensis 

 from the 26th. The present speci- 

 men occurs within the P. magal- 

 haensis area, but corresponds to 

 P. diimerilii in the disposition of the 

 heteronereid feet. This seems an 

 additional reason for regarding the 

 separation of the two species with 

 suspicion. 



■^O 



Fig. 37. Platynereis magalhaensis. 

 foot of epitocous $. 



Thirty-fifth 



St. 56 yielded four young specimens measuring about 7 mm. long, labelled "from 

 carapace of Paralomis." 



I have examined two specimens labelled by Benham N. australis, Schmarda, from 

 the Campbell Islands, but they throw little light on the question whether this species 

 should be identified with P. magalhaensis, as Benham and Ramsay claim. The specimens 

 are more massive than any examples of P. magalhaensis that I have examined. More- 

 over, the buccal segment is very short, but this may be the result of improper fixation: 

 the pedal languets are rather thinner and more pointed than is usual in P. magalhaensis, 

 but in other respects they appear to be indistinguishable. This is a question that the 

 examination of a large series of specimens alone can decide. 



Platynereis dumerilii (Audouin and Milne- Edwards). 

 Fauvel, 1923, p. 259, fig. 141 «-/, with synonymy. 



St. 90. 10. vii. 26. Simon's Town, False Bay, South Africa. Basin of H.M. Dockyard. 0-2 m. 

 Gear NH. Fourteen specimens. 



St. MS 82. 6. ix. 26. Off Salamander Point, Saldanha Bay, South Africa. 7-14 m. Gear BTS. 

 Eight specimens. 



Leptonereis loxechini (Kinberg). 



Nicon loxechini, Kinberg, 1865, p. 17S. 



Nereis loxechini, Ehlers, 1908, p. 73, pi. vii, figs. 8-12; and 1913, p. 497. 



St. 6. I. ii. 26. Tristan da Cunha. 3 miles N 30° E of Settlement. 80-140 m. Gear DL. 

 Bottom: rock. Eight specimens. 



14-2 



