CLAUSILIA, 317 



Tliere are seven palatal plicfc : llie upper long, near to and parallel 

 with the suture, the second one ([uarter of the lengtli of the 

 upper, the third still shorter hut parallel with the first two ; the 

 fourtli ver}' short and obHque ; the fifth considerably longer, 

 oblique, with a short support below near its posterior extremity ; 

 the sixth also oblique and bifurcate posteriorly ; the seventh 

 curved, near the parietal mai'gin of the peristome. This shell is 

 here delineated. 



i 

 Fig. 109. — Clausilia gouldiana var. macpia. 



A second specimen from Phaboo, in the Hungerford collection, 

 measures 12-5 x 6 mm. and possesses 12|| whorls. 



280. Clausilia andersoniana, Mollendorff. 



Clausilia {Pseudoiieniu) undersoiiiana, MiiUeiulorfi', J. A. S. R li 

 pt. 2, 1882, p. 12, pi. 1, fig. 12. ■ ' 



Ori(/inal description: — "Testa veutriculoso-fusiformis, solidula, 

 subtilissime striatula, fei^e laevigata, pallide corneo-fusca, apice 

 obtusiusculo ; anfr. 10 convexiusculi, ultimus valde attenuatus, 

 subtus rotundatus, distinctius striatus ; apertura parum obliqua, 

 obli(]U(' piriformis, peristoma continuum, valde solutum, expansum, 

 reHexiusculum, pallide corneum. Lamella parietalis supera obliqua, 

 sat valida, cum spirali continua, infera crassa ante marginem 

 . subabrupte desinens, subcolumellaris immersa. Plica princi})alis 

 valde elongata. palatales tres subveutrales, divergentes, iufima 

 arcuata. Clausilium ? 



" Alt. 20, lat. 4, apert. long. 4^, lat. Sj nun.'' (MHI/endorf.) 



Hah. Mergui Archipelago {Aiulerson). 



" Nearly related to insignis, Gould. Diflfers by the smaller size, 

 less ventricose shape, the number of whorls 10 instead of 9, the 

 more elongate and oblique aperture, the freer and more protruding 

 peristome, and its paler colouring and by the closing apparatus. 

 The latter is much more immersed inasmuch as the palatal plaits 

 of CL insignis are lateral, while those in the new species arc 

 nearly ventral and are, together with the inner end of the verv 



