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Show 1892.] THE LAND-MOLLUSCA OF THE PHILIPPINES. 449 never as establishing, a locality. The main authorities are the authors just mentioned, Hidalgo, von Martens, and Dohrn. Hidalgo's work requires special watchfulness, but on the whole his localities are trustworthy. No locality from Pfeiffer has been accepted unconfirmed. No especial care has been taken to weed out synonymous species. This would involve another heavy piece of work, and would not materially affect the results arrived at. Distribution of the Subgenera of Cochlostylax. 1. CHLORCEA. Luzon, 6 : benguetensis, Semp., geotrochus, Mollf., hanleyi, Pfr., gmeliniana, Pfr., antonii, Semp., hugeli, Pfr. (all N. Luzon except hugeli, which occurs also in Central Luzon). Marinduque, 2 : amcena, Pfr., 2fibula, Brod. Mindoro, 2 : thersites, Brod., constricta, Pfr. Cebu, 2 : fibula, Brod., sirena, Brod. Mindanao, 1: sirena, Brod. Tablas, 1 ; dryope, Brod. Sibuyan, 1 : dryope, Brod. Luban, 1 : fibula, Brod. This subgenus is widely distributed without being specially characteristic of any island. It is not recorded from the large islands of Leyte and Samar, nor from S. Luzon, which is closely related to them. The true position of the so-called Chlorcea pelewana, Mouss., from the Pelew Islands, cannot be said to be ascertained as yet. 2. AXINA. Luzon, 3 : garibaldiana, D. & S., kobelti, Mollf., schaden-bergi, Mollf. Cebu, 6 : magistra, Pfr., zebuensis, Brod., cumingi, Pfr., moreleti, Pfr., carbonaria, Sby., phloiodes, Pfr. Siquijor, 1 : siquijorensis, Brod. The distribution of this subgenus is remarkably broken. It appears to replace Calocochlea in Cebu, and to be replaced by it in all the other islands except Luzon. 3. CORASIA. 3 Babuyanes, 3: 4 elisabethse, O. Semp., * albaiensis, Sby., 4 halichlora, O. Semp. Luzon, 8: 4 albaiensis, Sby., psittaciua, Desh.,- erubescens, Semp., pudibunda, Semp., livido-cincta, Semp., aurata, Sby., irosinensis, Hid., cserulea, Mollf. 1 A very small island, lying quite close to a large one, with but little depth of water between, is regarded, for the present purpose, as forming part of the larger island. 2 Species italicized are found on more than one island. 3 Elisabethce and halichlora from Oalayan I., albaiensis from Camigmn de 4 These species may possibly be classified as Calocochlea. |