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Show 1871.] MR. SYLVANUS HANLEY ON A N E W MONOCONDYLIEA. 587 7. CYCLOTUS RECLUZIANUS. Cyclostoma recluzianum (Cyclotus), Pfr. Proc. Zool. Soc. 1853, p. 51. Cyclotus recluzianus, Pfr. in Malak. Bl. 1854, p. 80 ; H . & A. Adams, Gen. Rec. Moll. ii. p. 275 ; Pfr. in Mon. Pneum. Vivent. 1858, tome ii. p. 21, 1865, tome iii. p. 2 7 ; Reeve, Conch. Icon. pl. ix. fig. 53. Hab. Dillon's Bay, Erromanga, N e w Hebrides (coll. Brazier). The original or type specimens were collected at the same place by m y late friend Mr. John Macgillivray; and during m y visit to Erromanga, six years ago, I found it plentiful under decayed leaves in very damp places near the sea, and never upon any other island in the N e w Hebrides. The late Mr. Cuming was in error when he sent it to Dr. Pfeiffer with the locality " Solomon Islands." I have been through almost every island in the Solomons, and have not met with any of the genus Cyclotus. 8. CYCLOTUS MACGILLIVRAYI. Cyclostoma macgillivrayi (Cyclotus), Pfr. Proc. Zool. Soc. 1855, p. 103; Pfr. Mon. Pneum. Vivent. 1858, tome ii. p. 21, 1865, tome iii. p. 27; Reeve, Conch. Icon. Cyclotus, pl. 9. fig. 57. Hab. Aneiteum Island, New Hebrides: found inland in ravines under wood (coll. Brazier). When Dr. Pfeiffer described this species, he gave the correct locality, and when he brought out his second part of ** Monographia Pneumonopomorum' he also gave it correctly, and at the same time a locality of his own, N e w Georgia, one of the Solomon Islands. It is impossible to find this species at any island in the Solomons. In the third part of the ' Monographia' he only gives " Nov. Hebrid.;" but it is only found on one island of the group, and not on all, as the term N e w Hebrides would imply. 7. Description of a n e w Species of Monocondyleea. By SYLVANUS HANLEY. [Received June 5, 1871.] MONOCONDYLEEA WALPOLEI, Hanley. Testa valde ineequilateralis, ovato-oblonga, subrhomboidea, ventricosa (in medio autem, inferne leviter concava), concentrice rugulosa, epidermide brunnea nitida vestita, antice angusta et superne angulata, postice dilatata et arcuatim rotundato-sub-biangulata. Margo dorsalis antice declivis, postice leviter acclivis et paullulum subarcuatus. Margo ventralis in medio incurvatus, antice oblique et arcuatim acclivis. Area postica (seu umbonalis) lata, tripartita, superne concava, deinde bidentata et rugis crassis elevatis obliquis divaricatim ornata, |