]. .1 



rillVEa 



Cllh.KNIUS. 



1011 



anterior baring regular longitudinal Mtrue, crossed with other* vary 

 minute and concentric ; from under the beak* diverge to the lateral 

 margin* of the ralree ooane and more irregular stria?, which raise the 

 posterior compartment above the other. The posterior valve ban a 

 well-defined apex, leaning toward* the posterior margin. Border thin, 

 moderately broad, and covered with fine nhiniiig bead-like gnuiu- 

 -. of the name colour an the shells, divided into two dUtinct 

 portion*, the upper of which i* composed of finer bead* than the 

 lower, and which are placed transversely. (Frembley.) The *pecie* 

 grow* to the length of 4 or 5 inche* : we have Been one that reached 

 4) inche* when dead. There i* another variety narrower than the 

 ordinary individual*, and Mr. Frembley observes that, among the 

 very young nhrlls, dome of them have their border* of a lighter 

 colour than their shell*, and spotted with black. Locality, Chill 



t'fiittm t 



tit 



Species with the Mantle-Border highly developed, and the valves 



very small. (Chitontllua). 



These are more or less cylindrical, and vermiform, the valves being 

 very small, and in some species almost entirely hidden under the 

 skin of the border, giving the animal an almost naked appearance. 

 Examples, Chitondlus loeru, and C. larrtrform if. 



a, Ckitonrllm lirrii ; b, Chitonclltu larrir/ormil. 



The following species are noted as British in Messrs. Forbes and 

 Hanley's ' History of Mollimca' :C'. ftueimlaru, C. ditcrepcnu, C. 

 Ilnulryi, C. ruier, C. cintreu*, C. aUnu, C. atellut, C. caneeUatut, C. 

 lirrii, C. marmortut, and C. punclaltu. 



Above 200 specie* of this family have been described. The genus 



in divided by Dr. J. K. Gray and others into numerous sub-genera, 



Poail 



Although from their fragility it might 1 supposed that few 

 remains of thaw animals would be found, indications of their existence 

 have been discovered as far back as the Paleozoic period. About 

 '24 foasil specie* have been discovered. Three of these are given 

 in Mr. Searle* Wood's account of the Crag Molluscs, published by the 

 PaUeontographical Society. 



I'KIVKS, i|,.. eniiiinun name of A Ilium ichtenoprann. Its bulbs 

 have the usual garlie ...|..m- of the gemix. and are used in soups and 

 tews: they are but. little mltivah*]. [Ai.LiUJt] 



Uhlmadt, a natural order of Polypetalou* 



Exogenous Plants, by some accounted allies of Mairarrtr, but more 

 correctly referred to the vicinity of Cutacttr, from wlmh, ami nil 

 those associated with them in the Uynobasic Group, they .lill'er in 

 having an involucrum to each calyx, or to each pair of ealicea. They 

 are handsome trees or shrubs, but of uo known use. Their leaves are 

 alternate and undivided, their stipules deciduous, and their flowers 

 in panicles or racemes, always showy, and often red. There an' !'nr 

 genera, Sarcolana, I. ,/,'</ mi, .S7,/;.,/<rmi, l;/,,,tloUra. The whole of 

 the species, about eight in number, are wild in Madagascar. 



Sarcoltrna mttltiflnrn. 



a, flower-bud ; 4, flower ; <, vertical section of flower ; rf, the calyx ; t, the 

 involurrura ; /, base of the flower, showing the spiral tube formed by the miimi 

 of the filament* ; </, A, back and front view* of anther* ; f, pistil ; A, tr. 

 nection of ovary ; /, fruit ; m, transverse rectlun of fruit ; n, vertical H-rtimi uf 

 fruit ; o, pericarp, splitting and discharging its seed ; jt t need ; q, < 

 section of seed ; r, transverse section of seed ; , embryo. 



CHL/E'NIUS, a genus of Coleopterous Insects, of the family 

 JIarpalida, and section Patellimana (Dejean). 



The species of this genus are all of tolerably large size, very elegant 

 in form, and generally adorned with various hues of green, IlinolourH 

 being rich, but not glossy, owing to the ii].]r ]>;irts Iwing more or 

 less covered with a very delicate pubescence, which produces n silk- 

 like appearance. Very many of the species have the legs and an' 

 of a pale yellow colour, and the outer margin of the wing-cases of 

 the same tint, and some have the elytra adorned with large yeJlofl 



The genus i Donstifate* aver* tag* croup of thi 



which, according to our views, eml>nt< ii ami 



i>iii<iilif. We will tlirrefon- liriefly ncptin- tin- il^tin.'ni ],ii 

 roctors of these three groups. 



All tin- f the. geii. 11 ImviiiK (lie tarsi i>f tli, aiitc'i-inr 



pair of legs dilated in Mliil t....lli in (lie mill 



the cmargination of the iiK-ntum : Imt tliey dilln ehii-tly in tlie form 

 of the terminal joint of the iilpi, and the (iill'i-n-nc-r luny lie thus 

 expressed : 



Terminal joint of the pnljii. 



Elongated ami 1rnne:iteil nt (lie !u*. 



Elongated ami ilistinetly .ii'c'iii-if'inn, 



Short and slightly securiform, l>inode*. 



