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capitulum efforntatus transverse ovale, acie transversa,
denticulata; dentes laterales atrinque quini, imbricati, formam medii e
dimidio imitantes, sed versus pleuram sensim discrepantes, collo
latiore, acie obliqua laminam intus emittente, in ultimo magnam
subqaadratam. Uncini utrinqoe circ. 90, graciles, bamo plano,
lineari, sensim diminuto, in ultimis evanido, in interioribus ad
basin solam, in mediis undique denticulato, scapo compresso,
in primo postice ala praedito, in mediis simplici, sub bamo
producto, versus basin leviter inflexo, attenuato, in ultimis
la-minaceo.
Trochus sisypbinus: dens medius laminaceus, laoceolatus, tertia
parte basali ovali, abrupte latiore, apice recurvo acuto, utrinque
serrulato; dentes laterales utrinque quini, imbricati, formam
medii e dimidio imitantes, ultimo parum difformi. Uncini
utrinque sexaginta et ultra, primo longe robustiore, lato, basti
postice dilatata, hamo infra tuberculis dentato, reliquis gracilibus,
hamo compresso, acuminato, in interioribus infra dentato,
utrin-qne serrulato, in mediis utrinque pectinato, in ultimis evanido,
scapo gracili, simplici, ante basin processu calciformi externö
praedito.
Phasianella pulla: dnns medius transverse ovatas, basi media
productus, acie non recurva edentulus; laterales quini obliqui,
quorum quaterni interiores imbricati, acie capitulati recurva
3-4-cuspidata, in quarta laterali, et processu muniti externo alato
in tertio et quarto evanido, quinto sublineari, clavato. Uncini
utrinque circ. 70, primis longe majoribus sensim diminutis,
hamo adunco, acuminato, ad flexuram postice denticulato, in
primis extus excavato, in postremis evanido, scapo primi lato
intus alato, in reliquis simplici medio intus producto.
Rotella lineolata: dens medius longitudinaliter subrecta ogulus,
muticus; laterales seni, quorum quatuor sensim paullo longiores
formam medii fere imitantes, quintus et sextas elongati,
carinati, illo lineari flexo, boc subfusiformi- Uncini subaequales
hamo ovali in interioribus ad flexuram postice, in mediis
undique denticulato, scapo arcuato, sub hamo producto.
Neri tina fluviatilis: dens medius minutus, muticus, corpore
sub-quadrato basi angustiore, producta; laterales tres, quorum
primus maximus, laminaceus, transversus, subtriangularis, margine
superiore subrecto, replicato, plano, inferiore externo rotundato,
interno emarginato, secundus et tertius minuti, subovales,
la-minacei, carina media crassiore flexuosa. Uncini circ. 60;
primus longe major, difformis, scapo brevi crasso, intus tuberculo
praedito, capitulo maximo, transverso, pileato, convexo,
margine antico radiato-denticulato, una cum scapo alam magnam
emittente rotundatam recurvam; uncini reliqui aequales hamo
subovato, postice denticulato, scapo intus producto.
HaIiotis tuberculata: dens medius parvus, depressus, basi
rotunda to-productus, supra lamina convexa tectus latiore matica; la-
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