86 Moll 
VII. MOLLUSCA. 
[ 1904 ] 
Trochus , anatomy of British species ; Randles (509). 
Trochus hirasei , Japan ; Pilsbry, P. Ac. Philad. 1904, p. 32, fig. : n. sp. 
t Tubogyra, n. gen. for T. primula, Barr., Silurian, Bohemia ; Perner 
(477), Expin. pis. lxxxiv, lxxxvi. 
t Tubomphalus, n. gen. for T. crenistria , Barr., Silurian, Bohemia; Perner 
(477), Expin. pi. xlii. 
t Umbospira, n. gen. for U. nigricans , Barr. MS., Silurian, Bohemia ; 
Perner (477), Expin. pi. xlii. 
f Umbotrochus, n. gen. for 17. aspersus , Barr., Silurian, Bohemia ; Perner 
(477), Expln. pi. lxvi. 
t Umbotropis, n. gen. for U. albicans, Barr. MS., Silurian, Bohemia ; 
Perner (477), Expln. pi. xlii. 
Haliotida;, Bellerophontidje, and Fissurellida:. 
Some new Silurian genera in the last section may belong here. 
t Donaldia, n. gen. for D. altera , Barr., Silurian, Bohemia ; Perner (477), 
Expln. pi. lvii. 
Haliotis tuberculata, anatomy and phylogeny ; Fleure (226) : Haliotis 
without perforations ; Kelsey (346) : H. tuberculata, imperforate ; 
Marquand, J. Conch, xi, p. 48, also Rep. Guernsey Soc. 1903, p. 233. 
Incisura , n. gen. for Scissurella lyttletonensis (sic), Smith ; Hedley, Rec. 
Austral. Mus. v, p. 91. 
t Lessuerella (Koken MS.), n. gen. for L. bohemica , Perner, Silurian, 
Bohemia ; Perner (477), Expln. pi. lxxiii. 
t Plectonotus, n. gen. for P. derbyi, n. sp., Devonian, Brazil; Clarke, 
Arch. Mus. Rio Janeiro x, p. 70. 
iPtomatis, n. gen. for group of Bellerophon patulus, Hall ; Clarke, t. c. 
p. 75. 
Puncturella demissa, New Zealand ; Hedley, Rec. Austral. Mus. v, p. 93, 
fig. : n. sp. 
Schismope brevis , New Zealand ; Hedley, t. c. p. 90, fig. : n. sp. 
Scissurdla jac/csoni, Gulf of Oman ; Melvill, P. Malac. Soc. London vi, 
p. 160, fig. : S. rosea, New Zealand ; Hedley, Rec. Austral. Mus. v, 
p. 90, fig. ; n. spp. 
D0C0GL0SSA. 
Acmasida:, and Patellhle. 
Docoglossa , evolution in ; Fleure (228). 
Acmcea octoradiata, Hutton, alticostata , Angas, notes on ; Hedley (292). 
Acmcea minutissima , off the Andamans ; Smith, Ann. Nat. Hist, xiv, p. 4 : 
n. sp. 
Lottia gigantea, Gray, anatomy ; Fisher (225). 
Nacella crebristriata , South Australia; Verco, Tr. R. Soc. S. Austral. 
xxviii, p. 144, fig. : n. sp. 
Patella, development ; Wilson (653). 
III. scaphopoda. 
Cadidus acuminatus , Tate, notes on ; Verco (630). 
t Clavulites, n. gen., type C. howurdensis, n. sp., Carboniferous, Kansas ; 
Girty, P. U. S. Mus. xxvii, p. 732. 
Dentalium, development ; Wilson (653) : Anatomy and histolog}' ; 
