MOLLUSCA OF INDIA. 35 
theobaldiana, Hanley, the footnote Conch. Indica, pl. xvii. fig. 5, 
shows us that that work was published and had been seen by him. In 
‘ Nevill’s Hand-list,’ p. 172, we find “ No. 102 Stenogyra (Glessula) 
theobaldi, Hanley, 2, Salween, coll. Mr. Theobald.” Nevill puts 
them 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 Glessula theobaldi comes from. Hanley figured it on 
pl. xvii, but in the index to Achatina in the Conch. Indica, p. xii, to 
theobaldi there is a footnote “2” “from Teria Ghat.” It looks asif 
Hanley had substituted another species for figuring, and not taken 
the Shan one, under the impression 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 Hill form has got introduced. When Hanley was engaged 
on the ‘Conchologia Indica’ I sent him a number of species of 
Glessula botb named and unnamed, which he afterwards returned 
tome. Among them I have two specimens of a Glessula named 
Theobaldi—in Handley’s handwriting—from Teria Ghat (No. 1580, 
Godwin-Austen Collection, British Museum). At the time I lent 
Hanley my Gilessulce 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 pl. xvii., it may be noted at once that the 
shells are all enlarged; take, for example, G. orobia (fig. 7) and 
G. prelustres (fig. 6). G. theobaldi (fig. 5) has a very considerable 
likeness to the Teria Ghat shell which Hanley returned to me with 
that 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 Bacillwm, 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 Bacillum (vide drawing by same 
artist, Mr. G. B. Sowerby, of B. cassiaca with its flat sides). 
Ali this points to fig. 5 representing the Teria Ghat specimen, and 
it is quite possible the one photographed for me by Mr. T. S. Glad- 
stone (Pl. 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 1916); the label is in type, a cutting from p. 172. 
They belong, as Nevill records them, to the genus Bacillum; they 
are both immature, the largest of 9 whorls, measuring 23°25 mm. 
in length, with sides of greater convexity than in B. casstaca, 
distinguishing it at once. The typical specimen 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. theobaldi, Haniey, from 
Calcutta, I consider it the same; it is only 21 mm. in length. 
Mr, Gude had marked it ‘* young of cassiaca Bs.” 
D2 
