South- African Lu>ul-][ollusca. 5i:?l 



s/n'ra is only (listin2;iii-tliefl by its white spire, which cannot 

 be seen while the animal is inside the present examples. No 

 one out here knows what pellicula is ; it may be the younf^ ot" 

 two or tiiree spp., sucli as natalensis, Krs., ph'i'dimus, iM. & P., 

 vitalis, yi.Sz. P., v.^c.,or may be =leucos/Hru.'^ {\[. Connolli/.) 



I liave very recently had an opportunity of carofnll^ 

 examininf^ with IMajor ^I. Connolly No. 15, sp. n. ? (vule 

 p. 128, part 1), from Maritzburc^, which I had named pro- 

 visiomlly bio'nupi. No. 15 agrees l)est with specimens in 

 the Natural History ]\[u^enm named pellicula, Fdr. There 

 are, however, in the same box two distinct species, one repre- 

 sented by two examples from Natal, the other by one sliell 

 from Delagoa Bay. K. burnupi comes nearest to the Natal 

 S[)ecimen3. On looking at Ferrusac's figures of pellicula 

 (Desh., Hist. Nat. i\Ioll. pi. ix. A, 1851), they represent a 

 form with a high spire, higher than in A", burnupi, the 

 description of which must now come in the third part. 



MicroJcerkus chrysoprasinus, M. & P. 



Locality. Thaba N'chu, O.R.C. [Major M. Connolly)-, three 

 specimens in spirit (No. 72). 



Shell very minutely perforate, globosely conoid ; sculpture 

 smooth : colour rich ochre, paler at apex, second species 

 streaked transversely with pale narrow bands; spire conic, 

 moderately high, apex blunt; suture impressed; wiiorls 4, 

 first three increasing regularly, the last much expanded ; 

 aperture broadly lunate and broad as high, oblique ; peristome 

 thin, slightly sinunted; columellar margin weak, thin, and 

 joining the thin callus on the side. 



Size: major diam. 11"G, minor lO'O; alt. axis 6'8 mm. 



Animal. — The visceral sac is wholly white, towards the 

 apex becoming ochraceous ; there is a thin dark streak, with 

 some white spots parallel to and near the mantle-zone and 

 some white spotting near the region of the heart, with a faint 

 narrow grey band near the kidney. The head and extremity 

 of the foot greyish in one specimen, in the other two all of 

 the same pale ochraceous tint. One of the largest specimens 

 dissected and drawn has a fairly long narrow right shell-lobe 

 and a small, triangular, pointed left shell-lobe. The mucous 

 gland at extremity of foot is covered with a small pointed 

 lobe. 



The generative organs are very similar to those of syyn- 

 metricus in having a small accessory gland globose and sessile. 



