odontophore

(redirected from odontophores)

o·don·to·phore

 (ō-dŏn′tə-fôr′)
n.
A structure in most mollusks over which the radula is drawn back and forth during feeding.

o′don·toph′o·ral (ō′dŏn-tŏf′ər-əl) adj.

odontophore

(ɒˈdɒntəˌfɔː)
n
(Zoology) an oral muscular protrusible structure in molluscs that supports the radula
odontophoral, ˌodonˈtophorous adj
References in periodicals archive ?
There are differences in the odontophores among adult specimens of paxillosid and non-paxillosid sea stars.
brasiliensis, the madreporite and odontophore are homologous to those of other recent, non-paxillosid asteroids, and follow the Late Madreporic Mode.
4 % eye length; two postrictal tubercles; choanae round or oval, not concealed by palatal shelf of maxillary arch; vomerine odontophores median and posterior to choanae, each about size of a choanae, narrowly separated, each bearing slightly slanted row of 3-5 teeth; tongue oval, its posterior border not notched, posterior Vi not adherent to floor of mouth; vocal slits lateral to tongue; vocal sac subgular.
9) % in females, separated from eye by 1 1/2 tympanum diameters; supratympanic fold thick, bearing 1-2 subclinical tubercles; 1-2 subconical postrictal tubercles; ventrolateral edge of lower lip bearing small tubercles, most evident posteriorly; choanae round, not concealed by palatal shelf of maxillary arch; vomerine odontophores median and posterior to choanae, separated medially by distance equal 1/2 width of an odontophore, each larger than a choanae, oval in males, subtriangular in outline in females, bearing up to 6 teeth in a slanted row; tongue oval, posterior 1/3 not adherent to floor of mouth, posterior edge not notched; long vocal slits lateral to tongue, vocal sac subgular.
0) % IOD in females; supratympanic fold thick, poorly defined, bearing subconical tubercles; tympanum absent, skin in area bearing rounded tubercles; one subconical postrictal tubercle; choanae small, round, not concealed by palatal shelf of maxillary arch; vomerine odontophores median and posterior to choanae, slanted or oval in outline, separated by distance about one-half width of an odontophore, each smaller than a choanae, bearing 4-7 teeth in a slanted row or clump; tongue longer than wide, posterior 2/5 not adherent to floor of mouth, posterior edge not notched; males lack vocal slits.
Diagnosis: (1) skin of dorsum shagreen with flat warts, that of venter areolate; short dorsolateral folds present; (2) tympanum round, its length 45-54 % that of eye; (3) snout short, subacuminate in dorsal view, rounded in profile; canthus rostralis sharp; (4) upper eyelid narrower than interorbital distance, no cranial crests; (5) vomerine odontophores oval; (6) vocal sac and nuptial pad present in males; (7) first finger shorter than second; fingers lack disks but with ventral pads; (8) fingers bear lateral keels; (9) ulnar tubercles present, fusing to form ridge; (10) round tubercle on heel; outer tarsal fold present; short inner tarsal fold; (11) inner metatarsal tubercle oval, 1.
0 % eye length; 2 or 3 conical postrictal tubercles; choanae not concealed by palatal shelf of maxillary arch, triangular in outline; vomerine odontophores median and posterior to choanae, subtriangular in outline in female, slanted in males, separated medially by distance equal width of an odontophore, bearing a slanted row of 3-5 teeth; posterior edge of tongue notched, posterior 1/5 not adherent to floor of mouth; no vocal slits in males.
It has always been assumed (Hedges, 1989, Joglar, 1989, Lynch & Duellman, 1997) that long (or very long) odontophores were derived and that loss of odontophores and teeth was also derived.
4 % eye length, its anterior and ventral edges elevated, separated from eye by distance slightly greater than tympanum diameter; postrictal tubercles scarcely evident; choanae large, round, not concealed by palatal shelf of maxillary arch; vomerine odontophores oval, median and posterior to choanae, smaller than a choana, separated medially by width of an odontophore, bearing a slanted row of 3-5 teeth; tongue longer than broad, its posterior edge bearing shallow notch, posterior Vi not adherent to floor of mouth; vocal slits long, posterolateral to tongue.
8) % in females; supratympanic fold thin, ending just behind tympanum; two postrictal tubercles, nearest subconical; choanae round, not concealed by palatal shelf of maxillary arch; odontophores median and posterior to choanae, approximately twice size of a choana, subtriangular in outline, elevated, separated medially by distance 2/ 3 width of odontophore, bearing transverse row of up to 4-5 teeth; tongue longer than wide, posterior edge with shallow notch, posterior 1/3 not adherent to floor of mouth; males with short vocal slits posterolateral to tongue.
2), have black mesorchia (juvenile females have black mesovarial pigment), display sexual dimorphism in tympanum size (tympanum of male about seven-eighths eye length, that of females about three-fifths eye length), have poorly developed vomerine odontophores (frequently concealed in tissue of palate except in large females where the low odontophores are slanted), and lack ventral pads on the inner two fingers and innermost toe.