310LLUSCA OF INDIA. 35 



thcohiddiana, Hanlej', the footnote Conch. Indica, pi. xvii. fig. 5, 

 shows us that that work was published and had been seen by him. In 

 ' Nevill's Hand-list,' p. 17:^, we find " No. 102 Stenorjijra {Qlessula) 

 tJteobahli, Hanley, 2, Salween, coll. Mr. Theobald. " Nevill puts 

 tiiera in Bacillum. It is to be hoped these specimens are still in the 

 Indian Museum, for they are very valuable; they would clear up 

 where true Glessida iheohaldi comes from. Hanley figured it on 

 jil. xvii, but in the index to Achatina in the Conch. Indica, p. xii, to 

 tJteobiddi there is a footnote "2" "from Teria Ghat." Itlooks asif 

 Hanley had substituted another species for figuring, and not taken 

 the Shan one, under the im[)rcssion they were one and the same. I 

 am glad I am able to clear this up to a certain extent, and show how 

 a Khasi Hiil form has got introduced. When Hanley was engaged 

 on the 'Conchologia Indica' I sent him a number of species of 

 Qlessula both named and unnamed, which he afterwards returned 

 to me. Among them I have two specimens of a Glessida named 

 Theohaldi — in Handler's handwriting — from Teria Ghat (No. 1580, 

 Godwin-Austen Collection, British Museum). At the time I lent 

 Hanlej my GlessnJx I had not a single species of the genus in my 

 collection from the Salween Valley, so there could be no mingling 

 of specimens. Turning to pi. xvii., it may be noted at once that the 

 shells are all enlarged ; lake, for example, G. orohia (fig. 7) and 

 G. 2»'(elustris (fig. 6). G. theohcddi (fig. 5) has a very considerable 

 likeness to the Teria Ghat shell which Hanley returned to me with 

 tluit name, allowing for similar enlargement with the sculpture 

 also somewhat exaggerated. At the same time fig. 5 has not at all 

 the form of a Bacdlam, measuring 42 mm. as given by Mr. Gude 

 (ex icon) ; on the contrary, it has a fine attenuate apex and not the 

 characteristic blunt rounded one of Bacillani {vide drawing by same 

 artist, Mr. G. B. Sowerby, of B. cassiaea with its flat sides). 

 All this points to fig. 6 representing the Teria Ghat specimen, and 

 it is quite possible the one photographed for me by Mr. T. S. Glad- 

 stone (PI. CLIX. fig. 4) is the identical shell. 



Theobald's shells from the Salween, in the Indian Museum, 

 cleared this up ; for on making application for them to Dr. N. Annan- 

 dale, the present Superintendent, he has most obligingly sent them 

 to me (March lUlG) ; the label is in type, a cutting from p. 172. 

 Tliey belong, as Nevill records them, to the genus BacHlvm ; they 

 are both immature, the largest of 9 whorls, measuring 23'25 mm. 

 in length, with sides of greater convexity than in B. cassiaea, 

 distinguishing it at once. The typical sjiecimeu sent home by 

 Theobald to Hanley would appear to have been lost ; it is fortunate 

 that about the same time Theobald gave specimens to the Indian 

 Museum. 



I found in the Beddome Collection (No. 121) a single, also 

 immature shell, with a label " sent by Theobald as ' Salwiniana.' " 

 On comparison with the specimens of B. theohaldi, Hanley, from 

 Calcutta, I consider it the same ; it is only 21 mm. in length. 

 Mr. Gude had marked it " young of cassiaea Bs." 



D 2 



