tylostyle

tylostyle

[′tī·lə‚stīl]
(invertebrate zoology)
A uniradiate spicule in Porifera with a point at one end and a knob at the other end.
References in periodicals archive ?
Moreover, the two ectosomal and choanosomal tylostyle size categories suggested by van Soest (2009; also by Pulitzer-Finali, 1986) seem to overlap in Uraba, as a close re-examination of spicule slides showed rather continuous sizes between 199.
For example, occurrence of a small size of spined tylostyles (recorded smooth elsewhere) in Clathria minuta and apperance of accessory sigmata in Niphates digitalis [recorded also in other continental areas of Colombia (Zea, 1987), but not elsewhere].
Spicules: tylostyles, selenasters, acanthomicrorhabs, spirasters, spherasters.
Tylostyles, prominent tyles, bluntly rounded apices, 258-705.
1999 described below, as it bears smaller tylostyles (297-477 x 6.
Tylostyles, straight, thicker at the middle and thinner below the tyle, 297-477 x 6.
Spicules: styles, tylostyles, acanthostyles, toxas, rhaphidiform toxas, palmate isochelae.
8 [micro]m; tylostyles, straight, fusiform, wide range of sizes, tyles conspicuous in smaller sizes, but less conspicuous in larger ones, 124-298.
In the absence of Mn-sulfate, two characteristic monaxonal spicules form: first, the oxeas with pointed tips at both ends; and second, more abundantly, tylostyles, which feature a knob at one end and a pointed tip at the other end (Arndt et al.
Both Vs short GANNGENN (AE) LANGLING * (AI) MALLEMOLLE (AO) RENTRANT * (EA) WELLWILL (EI) TERYTORY (EO) SHIFFLESHUFFLE * (IU) KONGKANG (OA) LOSSLESS (OE) QUODQUID (OI) MUSTERMASTER * (UA) FULLFILL (UI) First V short--Second V long CALICULI (AU) MOZEMIZE (OI) First V long--Second V short SAMESOME * w2 (AO) HINDHAND * (IA) POSTPAST (OA) TYLOSTYLUS (OU) BUTALBITAL st (UI) Both Vs long LAKELIKE *-- SOLESALE (OA) ROPERIPE * (OI) (AI) First V long--Second V silent TYLOSTYLES (OE)
Examples include the pluralised nouns FORESHORES, HANDSTANDS, HARUMSCARUMS, HELTERSKELTERS, HOTSPOTS, NICKSTICKS, PERISPERMS, POOPERSCOOPERS, POROSPORES (st), POTSHOTS, RICKSTICKS, TYLOSTYLES, and the verb OVERHOVERS.
ignis by subtle differences in the field, and by smaller spicules and tylostyles rather than styles, represented a different species, he opted to provide a new name (T.