iSi 



NOTE ON CONUS LINEATUS Solander AND CONUS 

 LINEATUS Bru^. 



By a. T. HOPWOOD. 



(Read before the Society, April gth, 1919). 



Whilst engaged in a study of the Genus Conus it was brought to my 

 notice that two different species, the one recent, the other fossil, each 

 bore the specific title lineatus. The original descriptions of the two 

 shells are reproduced below : — 



Conus lineatus Solander. 

 Brand. Foss. Hanton. p. 15, pi. i, f. 22, 1766. 

 Conus lineatus : — tesfa utrmque subconica obsolete striata ; striis 

 cequalibus Icevibiis spira siibnodulosa. Testa magnitudine articuli 

 digiti minimi, utrinque conica, obsolete striata : striis Icevibus 

 cequalibus. Spira acuta : anfractibtis inferne nodulosis : nodulis 

 CBqualibus. Cylindrus seu Ve7iter cequalis sensitn attenuatus. 

 Labrum Icevc. Columella Icevis. 



Conus lineatus Bruguiere. 

 Enc. Meth. Vers (2), 645, 1792. 

 Conus testa conica alba, macuHs fuscis longitudinalibus filisque numer- 

 osis trafisversis interruptis, spira obtusa, basi granosa. 



It will be seen from these descriptions that the two shells are very 

 different. 



Brander's original shell is mislaid, but the fossils now referred to 

 Solander's species agree with his description and figure in every 

 respect excepting only the striae. The type specimen may have been 

 larger than usual and was probably somewhat worn since it is described 

 as "obsolete striata." 



A reference to Bruguiere's figure and description can, equally, leave 

 no ground for dispute as to the shell intended. 



The fossil shell will retain the specific title lineatus Sol., and for the 

 recent species I propose the name pulcht-eliheatiis, thus retaining in 

 some measure the name by which it has previously been known. It 

 should be added that the authors of the " Monograph of Eocene 

 Mollusca " published by the Pal^ontographical Society discerned this 

 discrepancy in 1857 but appear to have done nothing further. 



In conclusion I must express my indebtedness to Mr. J. Wilfrid 

 Jackson for placing the Conchylien Cabinet at my disposal, and to 

 Mr. R. Bullen Newton, of the British Museum, for his kindness in 

 furnishing me with the extract from Solander's writings quoted above 



