natural, history

Palaeobelicina moquiniana livida RousseauHelicina livida 'Hombron and Jacquinot' PFEIFFER 1852, Mono. PneumonopomorumViven, i: 414 [nomen nudum]; ROUSSEAU 1854, Voy. au Pole Sud, 5: 47, p. II,fig. 40-44 (lies Salomon); PFEIFFER 1858, Mono. Pneumonopomorum Viven., 2:219; ibid. 1865,3: 245; ibid. 1876,4: 286.Remarks. This form seems to be only a uniformly colored race of moquiniana.Other than its dark reddish coloration, its size, outline and strongly developed keelare exactly similar to the typical form.The type locality is the southeastern part of Ysabel Island, the only locality inthe Solomon Islands where this French expedition landed.Palaeohelicina moquiniana spinifera PfeifferHelicina spinifera PFEIFFER 1855, Proc. Zool. Soc. London, p. 118, (Wanderer Bay,Guadalcanal); PFEIFFER 1858, Mono. Pneumonopomorum Viven., 2: 218; ibid.1865,3: 244; ibid. 1876,4: 286; SOWERBY 1873, Conch. Icon .. 19, Helieina. pI. 7,fig. 55a-b.Trochatella spinifera, SOWERBY 1866, Thesaurus Conch., 3: 294, pI. 277. fig. 416-417.Palaeohelicina spinifera, WAGI\'ER 1905, Denks. Akad. der Wissen., 78: 205, pI. 10,fig. 3a-c; WAGNER 1910. Conchy.-Cab. (2), I, pi. 18. sec. 2. p. 240. pI. 47. fig.13-16.Re mar k s. This is a local race or subspecies that is apparently confined to Guadalcanaland the associated island of Florida. It is much smaller than the typical form,though agreeing in all other esseritial characters.P. spinifera injlata WAGNER 1905, has been described from New Ireland [NewMecklenburg] in the Bismarks. Though no records are available for Bougainville,either moquiniana or certain of its varieties will probably be found to occur thereupon later iflvestigation. This appears to be the only record for this species outsideof the Solomon group. It is. however. to be regarded as a subspecies of moquinianaand not spinifera.Specimens examined. Florida: Tulagi. Guadalcanal: L 340. Honiara.Palaeohelicina moquiniana ecarinata WagnerPalaeohe!icina moquiniano ccarinala WAGNER 1910, Conchy-Cab. (2), I, pt. 18, sec.2, p. 240, pI. 47, fig. 12 (Solomons).Rem ark s. This subspecies differs from the typical form in possessing a roundedrather than a keeled periphery.Specimens examined. Choiseul. Malaita: Kivarambara; Su'u .162•