与 «PLANULATE»相关的英语书籍
在以下的参考文献中发现
planulate的用法。与
planulate相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Coelenterate Ecology and Behavior
The species of quieter or deeper water such as P^. meandrina and Porites are
the most abundant corals in Hawaii, yet they did not planulate in the course of the
study. The data collected here suggests that these species are seasonal in their ...
2
1: Contributions to Conchology
... with the outlines nearly rectilinear : whorls about nine, planulate, with the place
of the suture distinguished by a somewhat larger groove; last whorl terminating
very abruptly : aperture suborbicular, rather small : canal short, nearly straight.
3
Contributions to Conchology
... with the outlines nearly rectilinear : whorls about nine, planulate, with the place
of the suture distinguished by a somewhat larger groove ; last whorl terminating
very abruptly : aperture suborbicular, rather small : canal short, nearly straight.
Charles Baker Adams,
1850
4
Fossils in Earth Sciences
Perisphinctes has a planulate, serpenticone, evolute shell with a number of
whorls visible; its aperture (often broken in fossils and represented as whorl
section) is circular with weak impressed zones; umbilicus is shallow, yet broad.
5
Marine Gastropods from Curação, Aruba and Bonaire
Spire with the outlines quite curvilinear. Whorls about l4. planulate. canal short:
5.7 x l.8 mm. — l n our specimens the 3rd spiral is appearing on the 4th. 5th or
6th p. n.w; opening of siphonal canal connected to the aperture. Suture well
visible.
Kornelis M. De Jong, Henry E. Coomans,
1988
6
Patterns of evolution, as illustrated by the fossil record
This group is derived from the liparoceratids, its origin lying in the planulate
Capricorn Oistoceras (Figs. 15, 16) which gave rise to the oxycone Amaltheus
stokesi via Amaltheus bifurcus. This last species has compressed and evolute
outer ...
7
Manual of conchology: structural and systematic with ...
... spire convex, little prominent, apex valid, obtuse, costulate, whitish ; whorls 5-5
}, sub- planulate, rapidly and subregularly increasing, separated by impressed
sutures, the last large, dilated aud a little descending in front, obscurely
angulated ...
Henry Augustus Pilsbry, Academy of Natural Sciences of Philadelphia. Conchological Section,
1890
8
Manual of conchology; structural and systematic: With ...
"Shell small, imperforate, ovate-conic, transparent, thin, polished, faintly striate
under the lens, pale brownish-horn color; spire subacute, oblong-conic, sides
planulate; suture distinctly and narrowly marginate ; whorls six, siib-planulate,
slowly ...
George Washington Tryon, Henry Augustus Pilsbry,
1916
9
Proceedings of the Academy of Natural Sciences of Philadelphia
"Shell a little smaller; spire scarcely planulate, the apex not sub- immersed,
distinctly convex; whorls 5, not 5£, regularly but less slowly increasing, umbilicus
smaller" (Ancey). This form has not been figured. We have seen no topotypes, but
...
10
Structural and Systematic Conchology: An Introduction to the ...
Shell Paludiniform ; columella callous, scarcely planulate. Operculum concentric,
with spiral, sinistral, subcentral nucleus. philopotamis, Layard. (Heteropoma,
Benson.) Shell frequently globose, but spire exserted ; columella callous,
scarcely ...
George Washington Tryon,
1883