478 AEIONTD.E. 



Side cusps placed on somewhat broader base. Laterals scarcely- 

 different from central tooth, inclined towards the middle. The 

 shape does not perceptibly vary towards the margin, only the side 

 cusp ultimately vanishes. 



" The young animal : a black spot occurs on the posterior part 

 of the mantle, terminating in a point anteriorly and enclosing a 

 small area lighter in colour than the rest of the mantle. The 

 sides of the mantle are spotted with black. On both sides the 

 body is marked with a broad, black band, sharply defined towards 

 the back but gradually shading off towards the sole. The back 

 itself is again somewhat darker. 



" It may be presumed that, as is the case with many European 

 slugs which in their immature state are elegantly coloured in a 

 similar manner, this marking disappears later through darkening 

 of the rest of the pigment. 



u Since the entire collection is comprised of these two species 

 [A. gigantem and A. schlagintweiti] and these were obtained in 

 several localities, the genus may be regarded as widely distributed 

 and common." (Ifeynemann.} 



Hob. India : Simla ; Simla to Sultaupore ; Bias at Bishisht, 

 Kulu ; Bias Kund, Rotang Pass (Schlagintweit). 



Lieut. -Col. Godwin- Austen thinks this species is externally 

 very similar to A. altivagus, but smaller. He doubts the Sikkim 

 locality. 



468. Anadenus jerdoni, Godwin- Austen. 



Anadenus jerdoni, Godwin-Austen, Moll. India, i, 1882, p. 52, pi. 7, 

 fig. 7 (animal) ; Tryon, Man. Conch, ser. 2, i, 1885, p. 250, pi. 59, 

 fig. 64 (animal). 



Anadenus (sidcati) jerdoni, Cockerell, The Conchologist, ii, 1893, 

 p. 192. 



Original description (from spirit-specimen) : " Animal large. 

 The mantle apparently finely papillate in life. The foot above 

 very coarsely wrinkled, rounded at extremity. No gland. A very 

 narrow pedal margin. The respiratory orifice at the posterior 

 right margin or about one third the length of the mantle from the 

 posterior side. The eye-tentacles would appear to be very large 

 at the base. The mantle viewed from above, is rather circular in 

 form. The foot has a wide central area. 



" Total length 101-6, mantle 38'0, breadth 31-8 mm. 

 4, 1-5, ,. 1-25 inch, 



" Jaw is well ribbed, and 0-2 inch or 5'1 mm. wide." 



Hob. India : Kashmir (Jerdon). 



" There is only one specimen at the British Museum and there- 

 fore I am unable to give any details of the anatomy of this species, 

 of which no doubt some will be found in the Indian Museum 

 Collection, Calcutta. The gigantic specimens alluded to by 



