. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 96 Bulletin Museum of Comparative Zoology, Vol. 138, No. 4. Plate 3. Figs. 1 and 2. Telllna [Tellinella] acropisthus Barnard [= T. staurello Lamarck], the holotype off Cope Natal Durban, SAM A9547 (length = mm): F,g. 1, external view of the right valve; Fig. 2, infernal view'of the right valve' F,gs. 3 and 4. Tellma {Telhnella) rastellum Hanley, Durban, NM (length = mm): F,g. 3, external view of the right valve; Fig. 4, internal view of the right valve. along posterior dorsal slope of left valve and often lo
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 96 Bulletin Museum of Comparative Zoology, Vol. 138, No. 4. Plate 3. Figs. 1 and 2. Telllna [Tellinella] acropisthus Barnard [= T. staurello Lamarck], the holotype off Cope Natal Durban, SAM A9547 (length = mm): F,g. 1, external view of the right valve; Fig. 2, infernal view'of the right valve' F,gs. 3 and 4. Tellma {Telhnella) rastellum Hanley, Durban, NM (length = mm): F,g. 3, external view of the right valve; Fig. 4, internal view of the right valve. along posterior dorsal slope of left valve and often lost or obsolete in that area, forming indistinct or strongly developed, radial, smooth band from umlDO to ventral margin at junction of posterior and ventral margins. Posterior ridge biangulate and rather well developed in right valve; con- comitant sulcus in left valve. Ligament yellow to dark brown, rather strong, slightly protuberant, broad, elon- gate, and set in a weakly developed, elongate, sublanceolate escutcheon; lunule obsolete, developed somewhat in right valve, elongate and lanceolate; calcareous portion of ligament set on short, slighth raised nymphal callosities. Hinge line well developed. In left valve, cardinal complex consisting of anterior, subdeltoid, bifid tooth with irregular lobes, and of posterior, thin, short, laminate cardinal tooth ad- pressed to base of calcareous element of ligament; anterior lateral tooth distal to cardinal complex, poorly developed, con- sisting of blunt thickening of hinge hne; posterior lateral tooth obsolete, distal, and consisting of weak thickening of hinge line; cardinal plate rather narrow, with irregular proximal thickening infrequentlv occurring in hinge line anterior to cardinal complex. In right vahe, cardinal complex consisting of posterior subdeltoid, poste- riorly skewed, bifid cardinal tooth with subequal lobes, and of anterior thickened to subdeltoid laminate cardinal tooth; an- terior lateral tooth strong, shelflike
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