76 Moll. 
MOLLUSCA. 
Physa (Aplexa) hypnorum^ var. n. polaris^ Siberia, at the Yenissei, lat. 
71° N., Westerlund, Sv. Ak. Handl. (2) xiv. 2, No. 12, p. 67, pi. i. fig. 12. 
Aplecta spiculata (Morelet), Fischer & Crosse, Moll. terr. et fluv. de 
M^xique, vi. pi. xxvii. fig. 13. 
Physa P cenigma, sp. u., Westerlund, Sv. Ak. Handl. (2) xiv. 2, No. 12, 
p. 104, Siberia, Yenissei. 
Physa nyassana and succinoides, spp. nn., E. Smith, P. Z. S. 1877, 
pp. 717 & 718, pi. Ixxv. figs. 16-20, Lake Nyassa. 
Physa madagascariensis^ sp. n., Angas, P. Z. S. 1877, p. 628, pi. liv. 
fig. 2, Madagascar. 
Physa tehuantepecensis, sp. n., and herendti (Dkr.), figured ; Fischer & 
Crosse, Moll. terr. et fluv. de Mexique, vi. pi. xxvii. figs. 14 & 16. 
Physa {Isidora ?) sihirica, sp. n., Westerlund, Sv. Ak. Handl. (2) xiv. 
2, No. 12, p. 66, pi. i. fig. 13, Siberia at the Yenissei, lat. 71° N. 
Planorhis. The embryonal shell is distinctly sinistral ; Fischer, J. de 
Conch. XXV. pp. 198-200, pi. iv. fig. 6. 
Planorhis. Sowerby begins the monograph of this genus in Reeve’s 
Conch. Icon., pts. 232 & 233, 234 & 236, 14 pis., 123 species and figures. 
The following are apparently new : P. succinus^ sp. n., fig. 19, coarctatus^ 
fig. 21, decliviSj fig. 26, eburneus (Gray), fig. 38, Ceylon, catillus (Anton), 
fig. 46, heckianus (Hunker), fig. 66, chilemis (Anton), fig. 67, Chili, 
spenceri (Allen), fig. 60, Portugal, antiguensis (Guilding), fig.. 92, Antigua, 
arakanensis (Gould), fig. 100, Trinidad [? !], Isabel [?] (Morelet), fig. 101, 
perforatus (Gould), fig. 106, United States ; lenticularis (Hartm.), which 
is European, and = fontanus (Lightfqot), is wrongly identified, fig. 1 10, 
with opercularis (Gould), Sacramento River ; intertextus (Shuttl.), fig. 123, 
Florida. [The quotations are very poor, and not always correct. P. 
vermicularis^ fig. 104, is not new, but described by A. Gould, P. Bost. 
Soc. 1846.] 
Planorhis glaber (Jeffr.) = parvus (Say) = vermicularis (Gould) ; 
Nelson, Q. J. Conch. No. 10, p. 182. 
Planorhis metidjensis (Forbes) dufouri (Graells) = aclopus (Bourg.), 
common to Portugal, Southern Spain, and Northern Africa ; Fischer, J. 
de Conch, xxv. p. 248. 
Planorhis infra-liratus, sp. n., Siberia, at the Yenissei, lat. 63° N., and 
borealis (Lov6n), Siberia, lat. 66-69° N., Westerlund, Sv. Ak. Han^l. (2) 
xiv. 2, No. 12, pp. 69-61. 
Planorhis micromphalus (Fuchs, as fossil), living in the Caspian Sea at 
depths of 217-766 feet ; Grimm, Kasp. more fauna, ii. p. 84, radula 
pi. vii. fig. 8. 
Planorhis nitidellus^ sp. n.. Martens, SB. nat. Fr. 1877, p. 112, Yokohama. 
Ancylus. Monograph by Sowerby in Reeve’s Conch. Icon. pts. 336 & 
337, 3 pis., 30 species and figures. 
SiPHONARIlDJ]. 
Siphonaria macgillivrayi^ sp. n., V(ilain, Arch. Z. exp4r. vi. p. 127, 
pi. iv. figs. 27-29, St. Paul and Amsterdam Islands. 
Siphonaria redimiculum (Reeve), from Kerguelen Island ; E. Smith, 
Transit Venus Exp., Moll. p. 16 [anted, p. 7]. 
