108 Molh 
MOLLDSCOIDEA. 
Waldheimia. Generic distinctness defended. W. herguelensis^ 
= globosa, Sow., Thes. Conch, figs. 99-101 (nee Lam.), Kerguelen and 
Marion Islands, 20-150 fath., flavescens (Val.) = australis (Q. & G.), 
Port Jackson, 2-10 fath., wyvillii, sp. n., off Valparaiso, 2160 fath. ; 
Davidson, 1. c. pp. 8 & 40-44, woodcuts, & pi. iii. figs. 1-13. W. septigera 
(Lov(^n), not yet found living ; p. 66. 
Terehratella clorsata (Gm.), Kerguelen, 20-30 fath., and frielii^ sp. n., 
off Halifax, 1340 fath., and Philippine Islands, 82-102 fath.; Davidson, 
1. c. pp. 44-46, pi. iv. fig. 4, & pi. iii. figs. 19 & 20. T. pulvinata (Gould) 
is probably the young state of T. clorsata^ and. patagonica (Gould) that of 
Magasella flexuosa (King) ; id. 1. c, p. 67. 
Megerlia ? incerta^ sp. n., Atlantic, 1° N., 1850 fath., truncata (L.), 
Teneriffe, 70-75 fath., willemoesi, sp. n., South Australia, 120 fath., 
sanguinea (Chemnitz), Zamboanga, 10 fath. ; Davidson, Z. c. pp. 49-53, 
pi. ii. figs. 17 & 18, pi. iii. figs. 14-18, & pi. iv. figs. 1-3. M. pulchellai^)^ 
at Port Jackson ; id. 1. c. p. 66. 
Muehlfeldtiat new name for Megerlia (King, 1850, nec Desvoidy, Diptera, 
1830) ; Bayle, J. de Conch, xxviii. p. 240. 
Magasella. Generic distinction doubtful ; it is perhaps the young stage 
of Terehratella. M. flexuosa (King) = magellanica (Reeve, nec Chemnitz), 
near Cape Horn, 1450 fath., incerta^ sp. n., St. Thomas, W. Indies, 390 
fath., cumingi (Dav.), off Port Jackson, 2-10 fath., Terehratxda flhula 
(Reeve) is perhaps the same. Davidson, Z. c. pp. 10, 46-49, & 66, the first 
two, pi. iv. figs. 5 & 6. 
Waltonia valencienn[es']i (Davids.), probably = i/a^as. evawsZ (Davids.), 
which possibly = Terehratella cruenta (Dillw.), juv. ; Hutton, Manual of 
New Zeal. Moll. p. 177. 
Kraussina lamarcldana (Dav.), Port Jackson, shore to 10 fath., and 
pisum (Val.), off the Cape of Good Hope, 150 fath. ; Davidson, Z. c. 
pp. 53-55, pi. iv. figs. 7-9. 
Platydia anomioides (Scacchi), Marion and Prince Edwards’ Island, 
100 fath. ; id. 1. e. pp. 55-57, pi. iv. figs. 10 & 11. 
Argiope decollata (Chemnitz), Teneriffe, 70-75 fath. ; id. 1. c. p. 57, 
pi. iv. figs. 12 & 13. 
Argiope capsula found at low water on Jersey ; no trace of septum in 
either valve ; J. G. Jeffreys, Ann. N. H. (5) vi. p. 408. 
Cistella ruhro-tincta (Dali), antillarum and schrammi (Crosse) =; 
harretiana (Dav.) ; Davidson, Z. c. p. 67. 
RHYNCHONELLIDiE. 
Rhxjnchonella nigricans (Sow.), var. pixydata [^pxjxid-~\ (Watson), south 
of Kerguelen Island, 150 fath. ; Davidson, Zool. of Challenger Exp. i. 
pt. 1, p. 59, pi. iv. fig. 14. 
Discinid.®. 
Discina atlantica (King), Atlantic and Pacific, 200-2400 fath., stella 
(Gould), off Bermuda, 49 fath. ; Davidson, Z. c. p. 64, pi. iv. fig. 19. D. 
tenuis and loivis (Sow.) are one species ; id. 1. c. p. 67. 
