308 MES. JANE LONGSTAFF ON SOME NEW [Sept. I9I2, 



distinguished by the baud being situated above instead of below the 

 ribs, and the ribs continue on all the whorls. 



Dimensions. — Length = 2o millimetres. The specimen is em- 

 bedded in the matrix, so the exact width cannot be ascertained. 

 Height of body-whorl = 5-5 mm. 



Locality. — Little Island, Cork. 



Horizon. — Top of the Carboniferous Limestone (D^ of Dr. 

 Vaughan). 



For the loan of specimens I am indebted to Prof. T. McKenny 

 Hughes, F.R.S., Prof. ^Y. J. Sollas, F.R.S., Dr. ScharfP, Dr. 

 Trechmann, Mr. John Smith (Dairy), Mr. Joseph Wright, Prof. 

 Rothpletz, and the Geological Survey, Jermyn Street, For very 

 valuable assistance in various ways I desire to express my cordial 

 thanks to Dr. A. Smith Woodward, F.R.S., Mr. G. C. Crick, Dr. 

 F. L. Kit chin, Mr. H. A. Allen, Mr. F. E. Cowper Keed, Mr. E. A. 

 Smith, Dr. G. J. Hinde, F.R.S., Mr. G. K. Gude, Prof. Dollo, and 

 M. Rutot. 



The figures 1 a, 3, & 4 on PI. XXVII, and figs. 1 & 2 rt-2 h on 

 PI. XXYIII, are reproduced from photographs by Mr. H. Herring, 

 British Museum (Xatural History). I am indebted to Dr. Scharff" for 

 the photograph of PI. XXYII, fig. 2. The originals of PI. XXYIII, 

 figs. 3 a & 4 a, were taken by myself. 



EXPLANATION OF PLATES XXVII-XXX. 



Plate XXVII. 



Figs. 1 a-1 c. Tropidostropha grifdhi (M'Coy). Fig. 1 a. Front view, X ^. 

 Fig. 1 b. Outline of keel near the aperture, natural size. Fig. 1 c. 

 Portion of band which underlies the keel from the penultimate 

 whorl, X 2. Kildare. General Collection, National Museum of 

 Ireland, Dublin. (See p. 298.) 



Fig. 2. Tropidostropha griffithi (M'Coj^) {Vleurotomaria griffithi M'Coy). 

 Holotype. Back view, X h. Millicent Clane (Kildare). Griffith 

 Collection, National Museum of Ireland, Dublin. (See p. 298.) 



3. Tropidostropha griffithi CM'Coy). Section of whorl showing wide, open 



umbilicus, X 4. Ardclogh, Eathcool (Dublin). Sedgwick Museum, 

 Cambridge. (See p. 298.) 



4. Tropidostropha griffithi (M'Coj). Portion of surface of upper part of 



whorl, showing lines of growth and pittings on both shell-layers and 

 the internal mould, X 2. Kildare. General Collection, National 

 Museum of Ireland, Dublin. (See p. 298.) 



Plate XXVIII. 



Fig. 1. Tropidostropha pimctuta, sp. nov. Back view, natural size. Lowick. 

 Sedgwick Museum, Cambridge. (See p. 299.) 



Fig.s. 2 a-2 c. Tropidostropha punctata^ sp. nov. Fig. 2 a. Front view, 

 natural size. Fig. 2 /;. Portion of the lower surface of the whorl, 

 X 2. Fig. 2 c. Portion of the upper surface of the whorl, showing 

 lines of growth with pittings, X 2. Stanhope - in - Weardale. 

 Trechmann Collection. (See p. 299.) 

 3a & 3 6. Tmetonema suhsulcaiiim, gen. et sp. nov. Fig. Za. Back view, 

 X 9. Fig. 3 h. Lines of growth and groove, X 18. (See p. 306.) 



