SCIENCE-GOSSIP. 



127 



the Anamali Hills, in the Coimbatore District of 

 South India, in moist woods, at 2,000 feet elevation, 

 where it was very abundant on and under dead logs. 

 Gorilla heddomeae (figs. 13 and i^a-e), is, I be- 

 lieve, somewhat rare in collections. Mr. Pilsbry 

 has not included it in his synopsis of Corilla 

 {" Manual of Conchology," ix., p. 147), but, guided 

 probably by its external characters, he refers 

 it to the genus Pledopylis (see Errata, Index, 

 p. 121, of the same work). The absence of 



Fig. 13. — Corilla bcddomeae, type. 



vertical or transverse barriers on the parietal 

 wall, however, amply warrants its inclusion in the 

 present genus. The species differs in appearance 

 from the others in being wrinkled, thinner in 

 texture and much flattened above. Fig. 13 shows 

 the type from Haycock Mountain, Ceylon, the 

 specimen being in Colonel Beddome's collection. 

 It will be noted that it is strongly and regularly 

 wrinkled, the rugae being particularly coarse above 

 and about the keel, gradually decreasing towards the 

 base. The specimen measures twenty millimetres in 

 diameter. In figs. 14(1-^ a small variety from Wata- 

 wala, Ceylon, is shown from a specimen kindly lent 

 by Mr. Ponsonby, who, with his usual courtesy, 



Fig. 14. — Corilla bcddomeae, small variety. 



allowed me to open the shell, although it was his 

 only specimen. It will be noticed that this variety 

 is less coarsely wrinkled than the type ; it is also 

 paler and smaller, measuring only sixteen millimetres 

 in diameter. Fig 14^, which shows the shell with 

 the outer wall broken away, discloses the fact that 

 only two parietal plates are present, corresponding 

 to Nos. 2 and 3 in those species possessing three 

 plates ; for the sake of uniformity they will be 

 numbered 2 and 3 ; both are visible from the aper- 



ture (see fig. 146). No, 2 reaches to the parietal 

 callus, and, as will be obser%'ed, it is long and irregu- 

 larly flexuous, while No. 3 is very short. i)[ the four 

 palatal plates Nos. i and 2 only are visible from the 

 aperture. Nos. i, 2 and 3, are broad, and ascend 

 obliquely, parallel to each other, while No. 4 is 

 smaller, narrower, and revolves horizontally, paral- 

 lel to the suture, as may be seen on reference to 

 fig. 14c, which shows plates Nos. i, 2 and 3 shining 

 through, and fig. i^d, which shows Nos. 2, 3 and 4. 

 Fig. 14a shows all six 

 plates from behind their 

 inner terminations. 



Fig. 15. — Corilla charpentieri, 

 var. hinidtinenns. 



Colonel Beddome has 

 also favoured me with 

 the loan of specimens of 

 a shell sent out by Mr. H. 

 Nevill, under the name 

 of Corilla hinidunensis, and 



published by him without description in " Enume- 

 ratio Heliceorum et Pneumonopomorum insulae 

 Ceylon adhuc detectorum " (1871), p. i. Mr. 

 Pilsbry, in figuring this form in the ninth volume 

 of the "Manual of Conchology," p. 14S, t. 41, 

 ff. 23-25, has, with his usual discrimination, reduced 

 it to a variety of Corilla charpentieri, Pfeiffer, and a 

 careful comparison of the two forms has convinced 

 me that this view is the correct one, as the 

 only difference which could be detected is that 

 of size, Corilla charpentieri measuring twenty- 

 nine millimetres, and Nevill's Corilla hinidunensis 

 twenty-two millimetres. To complete the series 

 I have thought it useful to add a figure of 



Fig. 16.— Corilla erronea, var. trroinUa. 



this shell (fig. 15), which must now be known as 

 Corilla charpentieri, var. hinidunensis. 



Since dealing with the group of Corilla erronea. 

 Colonel Beddome has communicated to me 

 another form, known only by the unique specimen 

 which he received under the manuscript name of 

 Helix erronclla, Nevill (Ceylon). As manuscript 

 names are a source of great trouble, I am pleased 

 to have the opportunity of studying and figuring 



