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— T. ovata, subcordata, postice longior, ventricosa, tennis,
con-centrico substriata, purpureo-fusca, intus nitida; umbones in
{ ant. siti; lamina cardinalis angusta, sub umbone prominens,
sinuosa; cardo v. d. fossa lunulari parum profunda, <L lunulari
subtrigono, valido, fossa cardinali angusta, profunda, subtrigona,
d. cardinali fere sub medio umbone sito, lunulari paullum
minore, rotundato; v. sin. d. lunulari minuto, antrorsum obliquo,
foaaa lunulari magna, trigona, d. cardinali valido, fossa card.
magna, sat profanda; dentes laterales parum prominuli,
longi-tudinales; impressio muscularis antica duplex, superior minuta,
inferior ovalis, verticalis, posterior ovalis, superne emarginata;
impressio palliaris vix discernenda integra videtor. — A
Mon-tacuta (Lesaea) plane diversa Gyamio antarctico appropinquare
videtor babitu, cardinis dentibus, facie testae interna vesiculosa,
— at ligamentum internum detegere non potui. Boh. — Finm.
Mont acuta Tcrt.
Cardo: in utraque valva processus posticus, cristam formans, ab
opposito alterius valvae sensim discedentem, cui inseritur ligamentum
triangulare, postice latissiraum, antice sensim angustatum, demum
in foramine umbonum minuto exiens; lamina cardinalis ante foramen
in dentem anicum efformata.
307« M. tenella n. — T. exacte elliptica9 alba, pellucida, antice
longior et aliquantum altior, umbonibus in £ sitis, tenuissima,
fragilis, convexa, dente antico v. d. minuto, rotundato,
prominulo, v. a. obsoleto, crista ligamentali parum elevata,
sublongi-tudinali; };}. — Specimina anglicana M. ferruginos* Mont.
differunt forma magis elongata, postice nonnihil angustiore,
margine dorsali et ventrali subrectis, dentibus validioribus, crista
ligamenti subverticali, elevatiore. M. oblonga Tubt. diversa
videtur "dentibus omnibus erectis’’, Tellimya glabra Brown
cardinis atractura. Sed cavendum ne ligamentum exsiccatum pro
dente describatur. Boh.
•
308. M. substriata (Ligula) Mont., (Montacuta) Tubt., Macg.
Boh. — Finm.
Kellia Turt.
Bornia Phil. Poronia Rkcl.
Cardo: ▼. s. dentes cardinales bini approximati, quorum posticus
sub ipso umbone situs; pone eum incipit fovea ligamenti interni
angusta, obliqua* retrorsum vergens, jam (in sp. infra enumeratis) in
fundo umbonis abscondita, jam (in K. rubra Tubt., Poronia
Adanso-nii Rbcl.) apophysi suffulta prominente, cristam formante; dens
lateralia posticus elonga tus, remotus; v. d. dens card. unicus magnus,
öfvtrt. af Kongl. Vtt.-Aliaå. Förh. Arg. 3. N;o 6. 3
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