Page:Quarterly Journal of the Geological Society of London, vol. 33.djvu/158

120 120 S. Y. WOOD ON MOLLTTSCA FROM THE UPPER

seeing that N. conglohata has not yet been found in the Coralline Crag, as have the other two shells mentioned ; bnt such, neverthe- less, is my belief.

Fusus Waelii, Nyst.

Two perfect specimens of this Oligocene species, one of which precisely agrees with fig. 2 a of plate vi. of Yon Konen's work on the Middle Oligocene, were sent me by Mr. Reed, of York. They had been obtained from the excavations for Coprolite in the Boyton Marshes. As these excavations are, from their position, flooded with water, I am informed by Mr. Charlesworth that it is difficult to say what division of the Crag they arc in; for peculiarly Red-Crag species are intermixed with Coralline Crag ones. Mr. Bell, how- ever, tells me that in the excavations referred to, about 18 inches of Coralline-Crag are overlain by some Red Crag, and that, in work- ing, the labourers mix the two together, so that it is only from the colour of the specimens and the character of the shell that an opinion can be formed as to the division to which they really belong. If, therefore, F. Waelii belongs to the Crag, it is probable that it is to the Coralline, the colour and condition of the shells of which formation it possesses. The worn specimen described in the Sup- plement to the ' Crag Mollusca,' p. 29, as Fitsus crispus (Tab. xi. fig. 10) is possibly only a specimen of Fusits Waelii.

Mtjeex Reedii, S. Wood.

A perfect specimen of a Murex, obtained by Mr. A. Bell from the Coprolite excavation in the marshes at Boyton, has been sent me by Mr. Reed. In size and general appearance it resembles the figure of M. Haidingeri, Homes, given by Dr. Homes in tab. xxiii. of his work on the Vienna beds, but differs in not having any trans- verse or spiral stria?, and in possessing some denticulations on the inside of the outer lip. I have assigned to it the above specific name. If a Crag species, it doubtless belongs to the Coralline Crag, the colour and condition of the shells of which formation it possesses.

Chemnitzia senjsteiata, S. Wood.

A small species of this genus was obtained by me from the Coral- line Crag of Sutton. It is a quarter of an inch in length, has slightly convex volutions, and somewhat resembles the figure of Scalaria quadristriata, Phil., as figured by Dr. Speyer, Conch. Cassel Tert. t. xxiv. f. 9 ; but my shell has a vertical columella, and belongs to the genus CJiemnitzia.

Scalaeia torulosa, Brocchi (Conch, foss. subap. p. 377, tav. vii. f. 4).

A specimen of this species, obtained by Mr. A. Bell from the Red Crag of Waidringficld, has been sent to me by Mr. Reed. It is doubtless only derivative in the Red Crag ; but from what bed it was derived I do not venture to suggest.