. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. South African Tellina • Boss 147. Plate 19. Diagrammatic illustrations of the internal surface of tfie valves, showing the dental configuration and muscle scars of the right valve. Fig. 1. Tellina (Moerella) analogica Sowerby, Baboon Point, Saldanho Bay, South Africa, SAM 14996 (length = mm). Fig. 2. 7e//ino (Fafau//no) tabula Gmelin, '•Natal" [in error], SAM A30016 (length = mm). Fig. 3. Macoma [Scissulina] dispar (Conrad), Goh Sindarar Nua, Thailand, USNM 661365 (length = mm). Fig. 4. HeterodonoK
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. South African Tellina • Boss 147. Plate 19. Diagrammatic illustrations of the internal surface of tfie valves, showing the dental configuration and muscle scars of the right valve. Fig. 1. Tellina (Moerella) analogica Sowerby, Baboon Point, Saldanho Bay, South Africa, SAM 14996 (length = mm). Fig. 2. 7e//ino (Fafau//no) tabula Gmelin, '•Natal" [in error], SAM A30016 (length = mm). Fig. 3. Macoma [Scissulina] dispar (Conrad), Goh Sindarar Nua, Thailand, USNM 661365 (length = mm). Fig. 4. HeterodonoK ludwigii (Krauss), Delagoa Bay, Mozambique, SAM A30021 (length ^ mm). Remarks. The whereal:)Outs of the holo- t>pe of TcUina analo'^ica Sowerby is un- known. Barnard (1964b) eould not find the type, and it is not in the type collection of the British Museum (Natural History). Since only a relatively few specimens are known, it appears that this species is quite rare. Both Sowerby (1904) and Barnard (1964b) have pointed out that r. analogica is closely allied to T. gilchrisfi, and Barnard even suggested that they might be indistinguishable and synony- mous. The species are sympatric and very closely related; their hinge elements, especially the lateral teeth, and the con- figuration of their pallial scars are virtually the same. But the few specimens available seem quite distinct from T. gilchristi. Al- though the outline of the valves varies from subtrigonal to subrectangular, T. analogica is proportionately higher and wider that gilchristi. The posterior trun- cation of analogica is more blunt and usually biangulate, while in gilchristi the posterior end appears to be more distinctly pointed. Further, the shell of analogica is white, whereas gilchristi is normally rayed or banded with pink or red. White indi- viduals of the latter have the usual longer dimensions, a narrowed posterior aspect, and are distinguishable from analogica. Range. Tellina analogica is a so
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
