C. COSTATUM. _Buc._ sulcis costis elevatis membranaceis.

The original description has been somewhat enlarged in the press, by the

addition of "brevissimis," "et extrorsum flexis," "fossula distinctus;

at vero ille sub anno quasi duplex"; "minus vero ad latera sulcata,"

moreover, was simply "ad alterum latus": the only expression omitted in

printing was "reflexus," which followed "Anus margine."

Journal of the Proceedings of the Linnean Society - Vol. 4 Zoology · 第 32 / 311 题