. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 142 Bulletin Museum of Comparative Zoology, Vol. 138, No. 4. Plate 16. Fig. 1. Paratype of Tel/ino [Moerella] gilchristi Sowerby: external view of the left valve, sfiowing strength of concentric lirations anteriorly, off Cape Point, South Africa, SAM 14751 (length z= mm). Figs. 2-4. Holotype of Tellina [Moerella) vidalensis Sowerby, off Cape Vidal, Zululand, SAM 14848 (length =: mm): Fig. 2, external view of the right valve; Fig. 3, internal view of the right valve; Fig. 4, internal view of the left valve, t
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 142 Bulletin Museum of Comparative Zoology, Vol. 138, No. 4. Plate 16. Fig. 1. Paratype of Tel/ino [Moerella] gilchristi Sowerby: external view of the left valve, sfiowing strength of concentric lirations anteriorly, off Cape Point, South Africa, SAM 14751 (length z= mm). Figs. 2-4. Holotype of Tellina [Moerella) vidalensis Sowerby, off Cape Vidal, Zululand, SAM 14848 (length =: mm): Fig. 2, external view of the right valve; Fig. 3, internal view of the right valve; Fig. 4, internal view of the left valve, to show development of posterior lateral tooth. Fig. 5. Tellina (Moere//a) vidalensis Sowerby: external surface of left valve to show strength of sculpture, off Nonoti River, Natal, UCT-63F (length = mm). T. donacina of European —the type- species of Moerella—and T. vidalcnsis. The former attains a slightly larger size, is less pointed posteriorly and somewhat higher in proportion, and its right anterior lateral tooth is closer to the cardinal complex. As noted by Barnard (1964 b), the record of the occurrence of T. vidalcnsis at Valdivia Station 100 in Francis Bay (Thiele and Jaeckel, 1931) is questionable. However, the specimens collected by Stimpson in 1853 from False Bay, cited by Bartsch (1915), and referred to T. g^ilchristi by Barnard, are without doubt T. vidal- ensis. The identity and status of many of these smaller tellens may remain a mystery for some time to come. I have no doubt that, for example, T. vidalcnsis is much more widely distributed in Indo-Pacific waters than the present record indicates. But larger series of specimens of small, shallow water species from widely different areas are not presently available. For example,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ha
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