50 Moll 
VII. MOLLUSCA. 
f Puzosiciy on the genus ; Sarasin (404). 
t Seguenziceras, n. g., for S. canavarii , n. sp. from the Lias of Monte Calvi ; 
Levi, Boll. Soc. geol. Ital. xv, p. 272. 
f Sonneraticty on the genus ; Sarasin (404). 
\Sowerbyceras , n. g. of Ammonites from Callovien of Savoy; Parona & 
Bonarelli, Mem. Ac. Savoie, vi, p. 118. 
f Vishnuites , n. subgen. of Xenaspis , Waagen, for V. pralambha , n. sp. from 
tho Lower Trias of the Himalayas; Diener, Pal. Ind. ser. 15, ii, 
pt. 1, p. 83 et seq. 
TETRABRANOHIA TA. 
\ Acanthonautilus , n. g., bispinosus } n. sp. from the Carboniferous Lime- 
stone of Ireland; Foord (140) [see Blake (42) & Sherborn (412)]. 
t Baltoceras, n. g., type Endoceras burchardii , Dewitz; Holm (208). 
t Endoceras, note on ectosiphon and apical end ; Holm, Geol. Foren. 
Stockholm Forh. xix, p. 171. 
t Nanno, given as n. g. for N. aulema , n. sp., but previously described in 
Amer. Geol. xiv, pp. 205-208 ; Clarke, Geol. Surv. Minnesota, iii, 
pt. 2, p. 769. 
Nautilus pompilius, note on tentacles, pericardium, and spermatophores ; 
Willey (518): Notes on anatomy; Griffin (173). 
f Orthoceras, protoconch of; Young (527). 
II. gastropoda. 
See Simroth in Bronn (61). 
Notice of recent works on the distribution of; Simroth (423). 
Some species described from ‘Investigator* collections figured by Alcock 
& Anderson, Zool. Investigator, pis. v & vi. 
PULMONATA. 
STYLOM M ATOPHOR A. 
Armature of Helicoid land-shells; Gude (177). 
Testacellidje and Selenitim:. 
Apera bumupi, its anatomy ; Collinge (90). 
Ennea cairnsi , S. Africa, burnupi , Natal ; Melvill & Ponsonby, Ann. 
Nat. Hist, xx, p. 634, figg. : E. hamiltoni , n. n. for E. johnstoni , Smith, 
nom. prseocc. ; Smith in Johnston (225), p. 364: E. cylindracea , 
Socotra; Smith, J. Malac. vi, p. 34, fig.: E. gemma } bongeensis, p. 10, 
martens i, p. 15, perforata , p. 17, serrata , p. 18, duseni , p. 20, boango- 
lensis , p. 21, tulloergi , p. 23, Cameroons ; Ailly (4), figg. : n. spp. 
Excisa , new sect, of Ennea for E duseni y n. sp. ; Ailly (4), p. 20. 
Oleacina underwoodi , Costa Rica; Fulton, Ann. Nat. Hist, xx, p. 212, 
fig. : n. sp. 
Paucidentina i n. sect, of Ennea , type E. curvilamellata j Martens (282), 
p. 16. 
Poiretia , n. subgen. of Olandina , for O. algira , Beck ; Sacco (403), pt. xxii, 
p. 57. 
Streptaxis helios ) p. 477, tumulus , capillosus , p. 478, decussatus y p. 479, 
Brazil; Pilsbry, P. Ac. Philad. 1897: S. camerunensis y Cameroons; 
Ailly (4), p. 5, fig. : JS. pusillus , Bukendo ; Martens (282), p. 32, 
fig. : n. spp. 
