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Show 1871.] MR.T. DAVIDSON ON JAPANESE BRACHIOPODA. 303 cailletti, Crosse, to be a good species ; and perhaps so likewise is unguiculus of Cooper. T. radiata, Reeve, is certainly so. From the Japanese waters Mr. Adams enumerates three or four species which appear to be all varieties or different states of growth of TEREBRATULA CAPUT-SERPENTIS, Linn. sp. (Plate XXX. figs. 7, 8, 9.) Terebratula caput-serpentis, T. japonica, T. cumingii!, A. Adams, Annals & Mag. of Nat. Hist. 3rd ser. vol. xi. p. 98, 1863. Mr. L. Reeve observes, in his 'Monograph of recent Brachiopoda,' that " T. japonica is closely allied to T. caput-serpentis, and is without doubt its representative in the Corean and Japanese waters;" and in this view Mr. Jeffreys fully concurs. Hab. Mr. A. Adams got:-T. caput-serpentis living at Tsu-Sima from 26 fathoms (sand and shell bottom), at Tsusaki 55 fathoms, Mino-Sima 63 fathoms; the variety japonica living at Tsusaki 55 fathoms, and Gotto, 48 fathoms, and in the Straits of Korea from 63 fathoms, and sixteen miles from Mino-Sima, the bottom being coarse black sand and broken shells; the variety angusta living from 54 fathoms off the island of Guelpart, seven miles from the shore, the bottom being black sandy mud, T. caput-serpentis was also dredged by Mr. Adams along with T. coreanica and W. picta off the Straits of Korea in 46 fathoms, four miles from Tsussima (at Tsu-Sima), from a bottom of sand and broken shells. Mr. Adams's specimens of T. cumingii (!) are evidently young examples of T. caput-serpentis, and were dredged alive at Tsu-Sima, 26 fathoms, and at Mino-Sima in 63 fathoms. Genus W A L D H E I M I A , King. A number of recent species have been proposed, described, and illustrated; but I think they may be reduced to the following nine, viz.: - W. flavescens, Val. apud Lamk.; W.venosa,Sol.; W.cranium, Miill.; W. grayi, Dav.; W.picta, Chemn.; W. lenticularis, Desh. ; W. septigera, Loven; W.floridana, Pourtales; and W. raphaelis, Dall.,-these three last presenting a good deal of general external resemblance, although said to be specifically distinguishable. WALDHEIMIA RAPHAELIS, Dall. (Plate XXXI. fig. 9.) Waldheimia raphaelis, Dall, American Journal of Conchology, vol. vi. p. Ill, pl. vii. figs, ad, 1870. This species has been described by Mr. Dall, who informs me that he has compared it carefully with authentic examples of W. septigera, Loven, and finds it quite distinct-that it is more than twice as large as the largest W. septigera and of a different colour, the Japanese shell being deep brown, with a slight rufous tinge, while the hinge-plate, septum, ovaria, and muscular impressions present notable differences in their details. Mr. A. Adams does not appear to have found Mr. Dall's shell or Loven's W. septigera during his Japanese dredgings, and mistook for this last a specimen of Terebratella spitzbergensis. |