POLYCH^ETA. BENHAM. 205 



drawings ; and Grube in his diagnosis of A T . trissophyllus 

 writes : " Lobus cephalicus. parvus, quadratus, segmento 

 buccali penitus impressus," which I read to mean that it 

 impinges " deeply " into the buccal segment. 



Again, there are details about the lobes of the notopodium 

 in which exact agreement is lacking ; for instance, Ehlers 

 shows two smaller lobes below the large one ; only one is 

 figured in M'Intosh ; nor did I find a second in this indi- 

 vidual. At the same time Ehlers notes that in the abundant 

 material that he had the variations in details are so great 

 that if they had been found separately different species 

 might have been established. 



The colour of the larger individuals is, according to Ehlers 

 and Grube, somewhat variegated, darker brown, either in 

 lines or spots or over the dorsum generally, on a paler ground. 

 But M'Intosh notes that amongst his material " the smaller 

 examples are pale," and presumably of uniform tint. 



Ehlers was able to compare his specimens with Kinberg's 

 type, and to assure himself of the identification of Grube's 

 with Kinberg's species (1897) and later with Schmarda's 

 (1904). 



If I am correct in this identification, the species is an 

 interesting example of an Australio-subantarctic distribution, 

 analogous with what Ehlers noted amongst the Polychaetes 

 of New Zealand and as I found amongst the Auckland 

 Islands worms. 1 



Loc. Forty miles east-north-east of Babel Island, Bass 

 Strait, 1200 fathoms. 



Distribution. Kerguelen ; Fiiegia ; Magellan Strait ; New 

 Zealand. 



Family AMPHINOMID^E. 

 Genus NOTOPYGOS, Grube. 



NOTOPYGOS LABIATUS, M'Intosh. 



Notopygos labiatus, M'Intosh, Chall. Rep., Zool., xii., 

 1885, p. 19. Id., Treadwell, Bull. U.S. Fish. Comm., 

 xxiii., 3, 1906, p. 1164. 



Of two individuals of a worm which I refer to this species, 

 one, well preserved, measures 39 mm. in length, so that it 

 is larger than the type ; it is widest about the middle, where 



1. Benham Report on Polychseta, Subantarctic Islands of New Zealand, 

 1909, p. 236. 



