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THE VOYAGE OF H.M.S. CH ALLEN GEE. 
or with lines of closely-set granules, sometimes with larger tubercles near the centre. 
Diameter, about T ^th inch (0’36 mm.). 
A variety resembling the more conical forms of Discorbina rosacea, but with thicker 
walls. The inferior face is flat and shows no Asterigerine flaps, but instead, a superficial 
ornament of exogenous costae or tubercles. 
Discorbina patelliformis is not uncommon amongst the islands of the Pacific, at 
depths of 6 to 150 fathoms. It has been observed also in shallow- water dredgings from 
the shores of Ceylon, Madagascar, the Mauritius, and Malta. 
Discorbina tabernacularis, H. B. Brady (PI. LXXXIX. figs. 5-7). 
Discorbina tabernacularis, Brady, 1881, Quart. Journ. Micr. Sci., vol. xxi., N. S., p. 65. 
Test free ; contour that of a tall cone with somewhat convex sides and more or less 
concave base, often deeply sunken at the umbilicus. Segments long, oblique, arranged 
in about three convolutions ; the septal lines of small or immature specimens limbate 
externally, those of larger shells concealed by the general thickening of the walls of the 
test. Inferior surface ornamented with radiating striae or crenulations ; superior with striae 
or irregular costae radiating from the apex. Diameter, y^yth inch (0'25 mm.) or less. 
Discorbina tabernacularis is a minute coral-reef species. It sometimes occurs in 
pairs, that is to say, two shells firmly attached to each other by their bases (fig. 6), a 
condition more frequently observed in Discorbina parisiensis. 
Specimens have been taken at nine localities amongst the islands of the South Pacific, 
depth from 2 fathoms to 255 fathoms, but chiefly in very shallow water; also off 
Honolulu, 40 fathoms ; in harbour-mud from Port Louis, Mauritius ; in shore-sand from 
Tamatave, Madagascar; and off St. Vincent, Cape de Verde Islands, 11 fathoms. 
Discorbina parisiensis, d’Orbigny, sp. (PI. XC. figs. 5, 6, 9-12). 
Rosalina parisiensis, d’Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 271, No. 1 ; — Modele, No. 38. 
Discorbina parisiensis, Parker, Jones, and Brady, 1865, Ann. and Mag. Nat. Hist., ser. 3, 
vol. xvi. pi. ii. fig. 70. 
„ „ (pars), Wright, 1877, Proc. Belfast Nat. Field Club, 1876-7, App., 
p. 105, pi. iv. fig. 1. 
Discorbis parisiensis, Berthelin, 1878, Foram. de Bourgneuf et Pornichet, p. 40, No. 65. 
The test of Discorbina parisiensis is plano-convex, sometimes obtusely pointed at the 
apex, the peripheral edge subangular. The segments are long, narrow, and much 
arched. In some specimens the final convolution alone is visible on the superior face 
(fig. 6, a), but more frequently the large primordial segment is also seen (fig. 9), and 
rarely portions of the earlier whorl or whorls. The sutures are marked by fine lines, and 
