10 ENGLISH BOOKS RELATING TO «DIACTINAL»
Discover the use of
diactinal in the following bibliographical selection. Books relating to
diactinal and brief extracts from same to provide context of its use in English literature.
Family Crellidae Hentschel Poecilosclerida with a principal skeleton of diactinal
megaslceres arranged in plumose or plumoreticulate fibrous tracts, often
echinated by acanthostyles. The dermal skeleton is a dense layer of
acanthostyles.
Patricia R. Bergquist, 1978
2
A Dictionary for Invertebrate Zoology:
[L. dexter, right; vertere, to twist] An organism spirally twisting to the right. see
sinistrorse. diacresis see diaeresis diactinal a. [Gr. dis, twice; aktis, ray] Being
pointed at both ends. diactinal monaxon (PORIF) A monaxon that develops by
growing ...
3
Chemical Zoology V2: Porifera, Coelenterata, And Platyhelminthes
The calcareous spicules of the Calcarea are fine needles, pointed at both ends:
the diactinal oxea. Each spicule is formed by a mesenchymal cell, the scleroblast.
While the scleroblast is secreting its spicule, it divides into two daughter cells, ...
4
Modern Text Book of Zoology: Invertebrates
2-Diactinal monaxon 3 -Curved monaxon. 4-Triaenes. 5 & 6-Tetraxon calthrops.
7-Triradiate. 8 -Monaxon with ends hooked (anphidisc). 9-Hexactinal triaxon. 10
& 11-Potyaxons. 12-Spongin fibres. marketable size in about 7 years. Sponges ...
Monactinal Diactinal Curved Monaxon with Tctraxon monaxon monaxon
monaxon hook ends Triradiate Calthrops Hcxactinal g triaxon Polyaxon Polyaxon
Figure 4.7 Spicules and spongin. Spiculc {a 0 End of . ' iculc Sclcroblast 5p
Founder ...
6
Sponges of the New Caledonian Lagoon
Monaxonic Linear spicule with no more than two rays along one axis, including
both monactinal and diactinal spicules; also known as monaxonid (cf. triaxonid,
tetraxonidt. Mueronate Sharply pointed. Multispicular More than one row of ...
7
The Marine Fauna of New Zealand: Porifera, Demospongiae, ...
Family TEDANIIDAE Hentschel, 1923 Tedaniina Ridley & Dendy, 1886
Tedaniinae Ridley & Dendy, 1887 Diagnosis: Poecilosclerida with a
choanosomal skeleton of monactinal and/or diactinal megascleres which are
organised into plumose ...
Patricia R. Bergquist, P. J. Fromont, 1988
8
A Student's Text-book of Zoology: Protozoa to Chaetognatha
Shizochalina Schmidt ; Occanapia Norman. Sub-fam. 2. Gelliinae. Megascleres
all diactinal, oxea, or strongyla, Microsclera as sigmata or toxa ; no rind or fistulse
. Gellius Gray ; Gtlliodcs Ridley ; ToxocJuilinn Ridley. Sub-fam. 3. Tedaniinse.
Adam Sedgwick, Joseph Jackson Lister, Sir Arthur Everett Shipley, 1808
9
The Marine Fauna of New Zealand: Porifera, Demospongiae, ...
description of this sponge by Bergquist (1961) was based upon a small piece of
fixed tissue and only the peculiar, regularly notched diactinal 'spicules' permitted
description as a new species. The recorded dark red-brown colour is consistent ...
Patricia Rose Bergquist, 1996
10
The Light and Smith Manual: Intertidal Invertebrates from ...
... along a single axis. If growth occurs in a single direction (indicated by the
presence of one point), the spicule is a monactinal monaxon (plates 17A, 20A-
20D); if growth occurs in both directions, it is a diactinal monaxon (plates 17B,
20E-20J).
Sol Felty Light, James T. Carlton, 2007
