part 2] ACLISISA AND A( l.isnl DhlS. 73 



spec-inieus fivin Elie (Fife), wliii'h >ho\\ a ocrtain amount of varia- 

 tion in the ornamentation, tlien* l)(.'in«j: intermeiliate forms meriting 

 into the variety rariniin. In Mr. .1. Smiths collection tliore is a 

 ivmarkahly perfect yonn*; example with apex and aj>ertnre intact; 

 it consists of seven whorls besides the jn'otoconch in a length of 

 2-25 millimetres (PI. V, Hi;. 12). it is from Dykes, Kilhirnie 

 (Ayi-shirc), in the Lower Limestone Series. One of the ]>est pre- 

 served shells was found at Crawtield, Beith, and is figured (PI. V, 



Hg. 11). ^ . , . 



Holotvpe. — I're Collei-tion, Koval Society, Edinburgh. IM. V, 

 fig. 10. 



Locality and horizon. -Lain*iston ( Brankam Hall). Lanark- 

 shire, in the Lower Limestone Series. 



AcLisiXA KLONGATA, var. VAUiANs Donald. (PI. V, lig. 15.) 



Aclisina eloiigata, var. rarians Doiiahl, 1898, op. cit. p. 55 & pi. iii, titr. 9, 



Remarks. — This variety is esj)ecially well represented at Craig- 

 englen. In Mr. J. Smith's collection there are two young 

 specimens with the jn-otoconch intact ; the back view of one is 

 given in PI. V, fig. 15. They are from the Lower Limestone 

 Series at Dykes, Kilhirnie. 



Holotyi)e. — Op. cif. \)\. iii, fig. !). Tre Collection, Poyal 

 Society, Edinburgh. 



Locality and horizon.- Liuriston i Brankam Hall), in the 

 Lower Limestone Series. 



Aci.isiNA Ki.oN(iATA, var. ciNtiii-ATA Donald. ( PI. V. liiTs. 1;KV. 1 L ) 



Arlisiua rhmgnta, var. riugnhitn Donald, IM'S, uy. cif. ]i. 5.5 «.S: jil. iii. tii;». 10- 

 10 a ; ? fi>?s. 7<i-7 c. 



Be marks. — This variety is distinguished from the type by the 

 whorls being usually higher, as well as by the difl'erence in orna- 

 mentation. An exam])le larger than that ])reviously liginvd is 

 given in PI. \'. tigs. V.\ ti ^ i:i/>, as it shows the variati<m in the 

 ornamenting threads more distinctly. It is from the same locality, 

 and is in the same collection. The protoconch previously referred 

 to this variety ())l. iii, figs, la 7r i most jmdwbly l)eIongs to 

 A. tcnuistrintii. The s))ecimen is contorted, and the ornamenta- 

 tion is indistinct. Mr. J. Smith has a renjarkably well-jufserved 

 example of this variety with the protoconch. which is tiLTtufd in 

 PI. V, fig. 14. Since the i)rotoconi'hs of the typical forn> and 

 the two varieties resendde one an«>ther, only one figure of each is 

 given, taken from different aspects. They are all from Dykes. 



Tlolotype. O/^ r//. j.l. iii. figs. 10,^ 10,^/. Young Collection, 

 (ilasgow Aluseum. 



Locality and horizon. — (iltueart. Dairy, in tin- I'jjper Limi'- 

 stone Serii's. 



ACI.ISINA IMHVliYHA (McCoy ). 



Aclinhhi jtoli/t/vra McCoy, I)<iiial<l. 189H. op. cit. p. 71 A pi. iii, tijf. 11, 

 (juotcil as Loxnntma poli/i/i/ni McCoy on j». 66, and refiTrwl with doubt 

 to Aclisinn elonijata (Fltiniii).'). 



