1906.] OF SOUTHERN INDIA AND CEYLON. 653 



on the label. They are all covered in places with some hard 

 reddish substance like sealing-wax, which seems to be adventitious 

 and to have no natural connection with them. They are yellowish 

 in colour and plump and convex in shape. The largest is 17 mm.. 

 long and 7 broad. 



The dorsal surface is rather sparsely studded with large, almost 

 clavate warts, between which are smaller ones. Near the margin 

 all the warts are smaller and more crowded. The integuments 

 are full of very long, thin, straight, colourless tubercles arranged 

 in stellate patterns. The rhinophorial pockets are closed by two 

 tubercles, the branchial pockets by 8-10, apparently set in more 

 than one row. The branchite are entirely reti-acted, small, and 

 badly preserved. Perhaps there are 5, in any case not many 

 more. The head seems to be prolonged on each side into a short, 

 blunt, tentacular process. The foot is broad without markings ; 

 the lateral margins are thin and expanded ; the anterior margin 

 grooved, but the upper lamina apparently entire. 



The internal organs are too much hardened for examination, 

 but a large free stomach was found. ISTo labial armature was 

 found. The radula is broken up, but perhaps the formula is 

 about 40 X 50.0.50. The teeth are hamate, rather strongly bent, 

 and with long bases. They seem shorter and thicker near the 

 rhachis. No denticulate teeth were seen. 



This form seems clearly referable to the section Staurodoris, of 

 which it has all the characteristics, except that the branchiae are 

 not simply pinnate as in the typical species. St. pustidata 

 Abraham (see especially Basedow & Hedley, Trans. Royal Soc. 

 South Austr. vol. xxix. 1905, p. 151) from Australia seems allied, 

 but is probably specifically distinct. 



As I have indicated elsewhere, I think that both Staurodoris 

 and Archidoris should be regarded as subgenera of the old 

 Linnsean genus Doris. 



Archidoris viol ace a Bergh. 



(Bergh in Semper's Reisen, Bd. ix. Th. vi. Lief, i., January 

 1904. Cf. Eliot, on Archidoris africana, Proc. Zool. Soc. 

 1903, ii. p. 361 : published April 1, 1904.) 



Through the kindness of Mr= Suter, I have been able to examine 

 some specimens of this form from Auckland, and think they are 

 identical with my A. africana, the description of which was 

 published a few months later. The difference of habitat is con- 

 siderable, but the nudibranchiate fauna of New Zealand includes 

 tropical elements like Ghromodoris and Doridopsis. 



The chief differences between the African and New Zealand 

 specimens are that the former have large tentacles and a number 

 of small tubercles (probably glandular) scattered over the under 

 side of the mantle- margin. Similar tubercles are found in other 

 East- African forms, and are pei-haps not a specific character. 



