208 REALIA. 
, 
positum e Cyclostomaeeis excludendis, et nomen Omphalotropis 
non adhibendum pro speciebus carina umbilieali destitutis *). 
Genus tali modo ampliatum in sequentes sectiones dividi 
potest: 
l. Léarea Gray 1852. ( Realia Gray 1840, Pfr. Mon. Pneum. 
ip. 30b; IT, ps 1535 TIT pz 0205) 
2. Atropis Pease**) ex parte. (Hydrocenae $. 1—3 Pr. 
Mon. Pneum. II. p. 154; III. p. 171; Omphalotropidis pars 
Pfr. Pneum. I. p. 306 et Pease 1869.) 
3. Japonia Gould, Pease in Journ. Conch. XVII. 1869. 
p. 159. (Hydrocenae $. 4 Pfr. Mon. Pneum. III. p. 172, ubi 
in nota characteres generis.) 
4. Scalinella ***) Pease in Amer. journ. conch. III. 1867. 
p. 225; Journ. Conch. XVII. 1869. p. 158: genus Realieorum. 
5. Omphalotropis Pfr. Mon. Pneum. III. p. 175. (OmpAa- 
lotropidis pars Pfr. Pneum. p. 306 et Pease l. e. 1869; Hy- 
drocenae $. 4—'(. Pfr, Pneum. II. p. 154.) — Martens Ostas. 
Zool. II. p. 159. — Pease in Journ. Conch. 1871. XIX. p. 9T. 
Conspectus specierum. 
28.1 ame. 0 V HE UL ARD LOSSOURE ENTERO E 
D. Atropis. 
a Sublaevigatae .. . . . . . & 2. —  8—21. 
b. Striatulae vel subrugosae . . $8.9. — 28—38. 
c. Spiraliter sculptae . . $& 4. — 39—40. 
C. Japoma Veces ie 3 e xS qe Dr c ed LEER 
JJ." Sealinella | s SU TUM ass des SeOvi s c MEO 
*) Nonnullae species hic enumeratae verosimiliter postea excludendae 
et ad alias familias (genus Assimineam, etc.) relegandae erunt, sed deficiente 
plerorumque animalium cognitione exacta, omnes ab Auctoribus huc relatas 
pro tempore admisi, indagationibus exactioribus decisionem reservans. 
**) Atropis (genus Cyclostominarum) Pease in Proc. Zool. Soc. 1871. 
p. 463. 476: ,testa oblonga, interdum cylindracea, rare ovata, imperforata 
vel anguste perforata, unicolor; apertura ovata, fere circularis; perist. sim- 
plex, eontinuum, ad anfr. penultimum adnatum aut disjunctum, interdum vix 
porrectum; anfr. ultimus saepe ad peripheriam subangulatus, — Animal 
opereulumque gen. Omphalotropis Pfr. persimile.* 
V**) Scalinella Pease: ,'T. scalariformi, anguste perforata; anfr. rotun- 
dati, longitudinaliter costati; sutura profunda; perist. subcirculare, continuum, 
rectum, disjunctum vel haud adnatum, interdum breviter porrectum. — Oper- 
culum tenue, corneum, paucispirum.* — Pütel Catal. p. 124: genus Rea- 
lieorum, 
