310 Mr. J. Walton un the British species of 



tends more than an inch beyond the apex, whei*e it is broken 

 off; the second curves outwards and shghtly backwards ; the 

 third is broken off near to the wing, but a remaining fragment 

 shows that it curved outwards and forwards ; the fourth first 

 proceeds forwards and then suddenly curves outwards ; the 

 canal is long and curved backwards. 



This fine species of Pteroceras appears to be nearly alone ; one 

 specimen in the cabinet of the author, without any labial expansion 

 and otherwise imperfect about the last volution, is the only other 

 known example. P. VVrightii in its perfect state would seem to 

 have had five encircling striae ; these are partially visible upon the 

 inferior surface of our specimen, the coarseness of the oolitic de- 

 posit in which they occur being unfavourable to the preservation 

 of any delicate sculpture. The surface of the body-whorl near 

 to the labial expansion is much covered up by adherent oysters, 

 but it appears to have been destitute of any encircling carinse. 



The general figure has some resemblance to the Pteroceras 

 ponti of D'Orbigny, but that species has upwards of six digita- 

 tions and as many costse upon the body-whorl. The cast figured 

 by Goldfuss under the name of Buccinum antiquorum from the 

 dolomitic oolite of Bavaria, may possibly belong to our species, or 

 otherwise to an allied form of the same genus. The remarkable 

 specimen here described is in the collection of Dr. Wright of 

 Cheltenham, to whom it is respectfully dedicated. 



Locality. Minchinhampton : common to the varied fossil fauna, 

 to which it is an important addition. 



XXXII. — Notes on the British species 0/ Curculionidse belonging 

 to the genera Dorytomixs and Elleschus. By John Walton, 

 F.L.S. 



Genus Dorytomus, Germ., Latr., Steph., Dej. 

 A. Femora dentate. 



1. Dorytomus vorax, Fab., Gyll., Steph., Schonh. 



— ventralis (var.), Steph. sec. ej. Man. 



— longimanus, ^ , Marsh, sec. Mus. Kirb. 



— TremultB, ? , Marsh, sec. Mus. Kirb. 



— cwvirostris, Kirb. MSS. 



The male of this species may be distinguished from the female 

 by its having the anterior legs, together with the first and second 

 joints of the tarsi, considerably elongated. 



Found rather plentifully on Lombardy poplars, near Edin- 

 burgh, by Mr. R. N. Greville, and in Cambridgeshire and North- 

 umberland by Mr. S. Stevens. 



