HORSI.EY : PRESIDENTIAL ADDRESS. 47 



H. p07naiia is named from the Greek 7rw/xa, an operculum, and not 

 from the Latin pomum, an apple. Nemoralis, i.e., inhabiting woods. 

 Compressa, i.e , with depressed ■s.^^w^t; ponderosa^ shell more ponderous 

 and thick, up to thirty grains as against an average often ; bifiiaroinata, 

 i.e., double margined, when the dark peristome is bordered within by 

 a white rib; rubella in somewhat late Latin means reddish. Var. 

 libellula. The word is unknown to classical Latin. There is indeed 

 libella, which means an as. In the Latin of Natural History, however, 

 libellula appears, and means a dragon-fly. Var. castanea = chestnut 

 coloured. Var. olivacea = olive brown. Var. albolabiata = with a 

 white peristome. 



C. /lorlensis, i.e., the garden snail. As to var. Incarnata, to classical 

 Latin this word is unknown. In mediaeval Latin it would, of course, 

 be common from theology, as meaning ' having become flesh.' 

 What was running in the namer's mind was apparently the idea of 

 flesh-coloured. Var. aietiicola, i.e., the denizen of the sands. 



Euparypha contains only pisajia, i.e., collected near Pisa in Italy. 

 So named in 17 ii by Petiver, an Aldersgate apothecary, who 

 bequeathed his collections to Sir Henry Sloane, the founder of the 

 British Museum. 



We come next to the family of Enidce. The species moutmia I 

 have found in the Swiss mountains on or under trees, but as found 

 in our south and west countries it does not justify its name. The 

 other species obscura was so named from its habit of covering itself 

 with earth, or other substances, by way of protection. 



The family oi Slenogyr/dcs = naiTOVf whorled. 



The genus Cochlicopa (named from Kox^^as, a spiral shell, and 

 KOTTTw, to cut, as having a notch in the lip) gives us l//br/ea, i.e., 

 slippery. Var. viorseana commemorates Prof Morse, who established 

 the American Naturalist in 1862. Var. exigua, i.e., smaller than the 

 type. Var. hyalina, of Jeffreys, should mean glassy. The Rev. G. 

 A. F. Knight (/. of C, vol. ix. p. 275) suggests that Azeca is named 

 from a town of the tribe of Judah. The only species is iridens, although 

 the number of denticles is not always three. Var. nouletiana, named 

 after the director of the Nat. Hist. Museum at Toulouse (died 1890), 

 has only one, and var. alzenensis has five. 



. The next genus is Ccecilioides. If this word is supposed to be 

 Latin it would mean either like to a blindworm or like to a lettuce. 

 C(zcus, however, being Latin for blind, the allusion, no doubt, is to 

 the fact that this subterranean species is eyeless. The specific name 

 aciaila means a hair-pin. 



The n:imQ Jann/iia is said by Dupuy to be derived from the Greek 



