164 



ON ANEITEA GRAEFFEJ AND ITS ALLIES. 



author to be rather doubtful. f The " Challenger " expedition 

 added from Wild Island, in the Admiralty Islands, another mem- 

 ber of the group, which was named by Mr. Smith A. virgatus.J 

 The structure of Athoracophorus was well described and figured in 

 1859 by Dr. Knight, § and was further elucidated by Professor 

 Hutton in 1881. t Keferstem also published a paper on that 

 subject. 



Another form of the bitentaculate sings was brought to light by 

 Dr. Macdonald, who discovered it in the New Hebrides in 1856^ 

 and contributed a description and figures of it to the Annals and 

 Magazine of Natural History.* He refrained from naming it, but 

 pointed out how it differed from Janella Tn a foot note he added 

 that an Australian slug, then undescribed, and of whose existence 

 he had just heard, " unquestionably belongs to the same genus." 



Gray named the novelty Aneitea macdonaldi, and not only did 

 he agree to separate it from the genus lie had previously called 

 Janella, but went so far as to suggest for it a new family Aneiteadafe' 

 With this species he identified some specimens in the British 

 Museum from New Caledonia. ff A few years later two specimens 

 of Australian Janellidse, collected at Woolldngong, New Soutli 

 Wales, reached Europe. They fell into the hands of M. Humbert, 

 who described them as a new species, graefTei, the type of a new 

 genus Trihoniophorus.** 



An exhaustive essay en the bitentaculate slugs by Keferstein 

 appeared in 1865. He reviewed all previously written on the sub- 

 ject, and created two new species of Tribouiophorus from fresh 

 material arrived from Sidney. One, schiittei, is distinguished by 

 a smoother skin, larger size, and the radula bearing a central 

 median tooth; he aids that it is possibly identical with graefTei. 

 The other, kreffti is smaller, rough skinned, the radula without a 

 rachidian tooth, and a "brick red border" is note I as surrounding 

 the mantle and the animal. The anatomy of kreffti is detailed at 



t Transactions f«JQt Institute, Vol. xiv, p. 1*1. 



♦ Proceedings of the Zoological Society. 18*4, p. 202. 



Transactions of the Lirinaen Society. Vol. xxii, p. 88 1 

 || Zeitschrift fur Zoologie. Vol. xv, pp. 44tt-448, pi. 34, figs. !-.">. 

 • Series 2, vol. xviii., p. 38. 

 + ♦ Ana. Mag Nat. HiBt , 3-6-W5. 

 Menoires de la oociete de Physique et d'histoi/e naturelle de Geneve. Vol. 

 pt 1. p IKS-120, tig. 2 a-e. 



iij Ze.td jhnft fur Zooiogie. Vo xv., pp. 7-:>-Ho, pi. 6 fig*. 1-13. 



