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Family 5. tHyalonematidae, Gray (Schulze, 1893). Pentactinal pinuli in both
dermal and gastral membranes. (a) Sub-Family 1. tHyalonematinae, F.E.S.
Genera — jHyalonema, Gray [Eoc], (Fig. 19) ; jPheronema, Leidy [Eoc] ;
Poliopogon, W. Th.
Sir Edwin Ray Lankester, 1900
2
Treatise on Invertebrate Paleontology
with the parenchymal megascleres varying from mainly hexactines to all
rhabdodiact- ines. Pinular autodermalia are shared by most Amphidiscosa and
the asconematid Lyssacinosa, and pentactinal hypodermalia by the
Amphidiscosa and ...
3
A Treatise on Zoology: The porifera and coelentera, by E. A. ...
fHYALONEMATlDAE, Gray (Schulze, 1893). Pentactinal pinuli in both dermal and
gastral membranes. (n) Sub-Family 1. IHyaloxematinae, F.E.S. Genera —
jHyalonema, Gray [Eoc], (Fig. 19) ; t Pheronerna, Leidy [Eoc] ; Poliopogon, W. Th.
(Fig.
Sir Edwin Ray Lankester, 1964
4
Skeletons in confusion: a review of astrophorid sponges with ...
... A habit oflectotype (grid is 1 cm) B—F SEM images made from the
paralectotype, B overview of spicules C various calthrops including a pentactinal
modification D tuberculated spheraster E large irregular oxyspheraster F small
oxyaster.
Rob van Soest, Elly Beglinger, Nicole De Voogd, 2010
5
Memoirs of the Museum of Comparative Zool̈ogy at Harvard College
It is evident that to the pentactinal arrangement of the hard parts of the calyx of
Echinoderms is due much of the analogous arrangement which we note among
them ; but it does not follow, because some of the plates which have ...
Harvard University. Museum of Comparative Zoology, 1894
6
A Dictionary of Scientific Terms: Pronunciation, Derivation, ...
pentactinal (pëntäk'tlnäl) a. [Gk. pente, five ; aktis, ray.] Five-rayed ; five-branched.
pentacyclio (pën'täsïk'llk) a. [Gk. pente, five ; kyklos, a circle.] Arranged in five
whorls (bot.). pentadactyl (pën'tädäk'tll) a. [Gk. pente, five ; daktylos, a finger.] ...
Isabella Ferguson Henderson, William Dawson Henderson, 1920
7
Chemical Zoology V2: Porifera, Coelenterata, And Platyhelminthes
Porifera, Coelenterata, And Platyhelminthes Marcel Florkin. pentactinal,
tetractinal, or even diactinal. The branches may be pointed, plumed, or may
terminate in discs. The triaxons are pinulated, or they may be oxyhexasters or
discohexasters.
8
Biomineralization and Biological Metal Accumulation: ...
18-20. Sponge spicules. Fig. 18. Birotulate microscleres in lotroahota birotulata.
x4050. Fig. 19. Dermal pentactinal pinule with heavily spined distal ray in
Sympagella nux. x550. Fig. 20. Sterrasters, late development, in Plaaospongia sp
. x810.
P. Westbroek, E.W. de Jong, 1983
9
... Calamocrinus Diomedæ, a New Stalked Crinoid: With Notes ...
... the position of which is doubtful in Holothurians ? It is evident that to the
pentactinal arrangement of the hard parts of the calyx of Echinoderms is due
much of the analogous arrangement which we note among them ; but it does not
follow ...
10
Memoirs of the Museum of Comparative Zoölogy, at Harvard ...
... in Holothurians ? It is evident that to the pentactinal arrangement of the hard
parts of the calyx of Echinoderms is due much of the analogous arrangement
which we note among them ; but it does not follow, because some of the plates
which ...
