74 Moll. MOLLUSCA. 
Onchidiimj. 
Onchidium chameleon , n. sp., Port Jackson, Brazier (1) ; see also v. Len- 
denfeld, pp. 16 & 38, antea. 
BASOMMATOPHOJtA. 
GEHYDROPHILA . 
Aqriculidji. 
Carychium lederi figured ; Boettger, (9) p. 320, pi. iii, fig. 10, and (10) 
p. 255, pi. viii, fig. 10. 
Pythia proximo, n. sp., West New Guinea, Tapparone-Oanefri, p. 158, 
pi. i, fig. 13. P. latidentata , n. sp., Katau, id. p. 100, pi. i, figs. 14 & 15. 
P. obscura , n. sp., Geelvink Bay, p. 162, pi. i, fig. 12. 
EYGROPIIILA. 
IjIMN2EID2E. 
Amphipcplea , continued by Clessin (3). A. queenslandica, n. sp., 
Queensland, p. 405, pi. liii, fig. 2. 
Qyraulus polaris, n. sp., N. of Norway, Esmark & Hoyer, pp. 115 & 116. 
Limncea. Clessin’s (3) Monograph completed, 145 species being 
recorded, of which the following are new : L. chefouensis, Cheefoo, 
p. 391, pi. lv, fig. 6 ; L. heudei , China, p. 394, pi. lv, fig. 10 ; L.mbllen- 
dorfianus , Chusan, China, ibid. pi. lv, fig. 5 ; L. mighelsianus } n. n., = L. 
ampla , Migh., p. 401. 6 additional palaearctic species ; Westerlund, (3) 
pp. 7-9. L. annamitica } n. sp., Hu6, Cochin China ; Wattebled, p. 57, 
pi. iv, fig. 4. L. anricirfaria n. var. coreana , Corea ; Martens (2). L. 
moeris , n. sp., Egypt, id. (4) p. 126. L. contractu , Currier, n. sp., 
Michigan, DeCamp, p. 14, pi. i, fig. 1. L. palustris n. varr. : Cockerell, 
S. (3) ; Sterki, p. 19. L. ( Gulnaria ) truncatulus -(Mull.) n. var. labiata , 
Talysch Mts. ; Boettger, (10) p. 256. 
Planorbis. 16 additional palaearctic forms ; Westerlund, (3) pp. 9-12. 
Monographic revision of Yorkshire forms ; Nelson & Taylor. P. (II ip- 
peutis ) distinctus , n. sp., Hunau, Gredler, (2) pp. 15-17. P. prcecarsor, 
Cossmann, 1883, = Valvata leopoldi , Boissy ; Cossmann. P. subanga- 
latus, remarks on some statements by Cockerell regarding; Smith (1). 
Erosion of shells of ; Shrubsole. 
Physim:. 
Physidce of Mexico treated, and many figured, by Fischer & Crosse ; 
n. spp. previously defined. 
Physa. Clessin’s (3) Monograph of this genus is completed ; 267 (No. 
263 is repeated) species are recorded, of which the following are 
new : — P. novo-guinece , New Guinea, p. 335, pi. xlvii, fig. 3 ; P. 
moderata y Tahiti, p. 338, pi. xlvii, fig. 12 ; P.peasei , Sandwich Is., p.339, 
