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The skeleton of Sphargiscoriacea from SurinamDr. Ferdinand KraussPublished online: 13 Oct 2009.

To cite this article: Dr. Ferdinand Krauss (1873) The skeleton of Sphargiscoriacea from Surinam , Annals and Magazine of Natural History: Series 4,12:67, 77-77, DOI: 10.1080/00222937308680707

To link to this article: http://dx.doi.org/10.1080/00222937308680707

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Miscellaneous. 77

Karl Miibius, in his very interesting lecture on the "psychischer Horizont der Thiere," figures the animal of Mya arenaria, which has unequal valves, and represents it as sunk perpendicularly in the sand. I t would be very desirable that any body having the opportunity of observing the bivalve Mollusca in their living state should examine into the truth of this theory, and record the exceptions.

The STceleton of Sphargis coriacea from ~urinam. By Dr. FERDI~AI~D KRAUSS.

I have compared the adult skeleton in the Stuttgart Museum from Surinam with the figures of the skeleton of the French specimen in t h e ' Archives du Musdum.' I can find no difference between them ; but I notice that no account of the length of the Paris spe- cimen is given, so that we do not know if it is an adult or a young o n e .

The Surinam specimen in the Stuttgart Museum measures in a straight line, from the end of the skull to the tip of the tail, 187 eentims. ; the skull is 25 centims, long and 21"5 centims, broad, the fore foot (humerus to the point of the digit) 87 eentims., hind foot 66 eentims.

The Deal.fish (Trachypterus arctieus)r

In the Report of the Montrose Natural-History and Antiquarian Society for 1873 there is the description of a Vaagmaer or deal-fish, found on the beach at Buddin Bay, near Montrose, and presented to the Society by Joseph Johnston and Sons. The description is ac- companied by a very good photograph, 8~ inches long. The Society's specimen appears to be the T. arcticus of Nilsson and Giinther.

Damonia unieclor, a new Species of Water-Tortoise from China, sent by Mr. Swinhoe. By Dr. ~. E. GRx~, F.R.S. &c.

Mr. Swinhoe has sent a number of tortoises in spirits from Shanghai. They consist o f : - -

1. SeverM specimens of Landemania peroeellata, a]1 young; but Mr. Swinhoe says that"it grows to the length of 2~ to 3 feet.

2. Several specimens of Damonia R~v~ii, most being of adult age, some being even bet~geen 4 and 5 i n c h ~ long, larger than the adult specimen described by me in the Ann. &Mag. Nat. Hist. 1873, xi. p. 299.

They all have the shell of a nearly uniform pale brown colour, and are black beneath. The head is large and broad, uniform olive above, with a white streak from the middle of the back of the eye, which forks on the cheek, the upper branch being continued along the side of the neck, the lower branch forked again in front of the tympanum, with the upper branch reflexed and the lower arched; but the form of these lines is net important, as they vary on two

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