23 



Analfeld klein , am abgestutzten Hinterrande. Apicalfeld etwas 

 excentrisch nach vorn gerückt; Peristom weit nach vorn gerückt, 

 halbkreisförmig, nicht eingesunken. Plastron kielförmig vorragend, 

 schmal, weit vom Peristom getrennt, von sehr breiten, nackten Ambu- 

 lacralfeldern umgeben. Diese Gattung steht Eupatagus nahe. 



Gymnopatagus valdiviae nov. sp. 

 Länge 69 mm. 

 Breite 56 mm. 



Entfernung der Unterlippe des Peristoms vom vorderen Schalen- 

 rand (Grund der Furche) 16 mm. 

 Desgl. vom Plastron 16 mm. 

 Breite des Plastron 14 mm. 

 Breite der subanalen Fasciole 19 mm. 

 Breite des Peristoms 8,5 mm. 

 Breite des Analfeldes 6 mm. 

 Länge des vorderen Ambulacruras 18 mm. 

 Länge des hinteren Ambulacrums 20 mm. 

 St.256,258,266,nahederKüstevonOst-Afrika, 741— 1362 mTiefe. 



II. Mittheilungen aus Museen, Instituten etc. 



1. Zoological Society of London. 



December 4 th, 1900. — The Secretaryread an extract from a letter which 

 had been addressed to the Colonial Office by the West India Committee, con- 

 cerning the proposed introduction of the English Starling or the Indian Mynah 

 into St. Kitts, West Indies, to check the increase of Grasshoppers, which were 

 causing great damage to the growing crops in that island. — Mr. R. Ly dekker 

 exhibited, on behalf of Mr. Rowland Ward, F.Z.S., and made remarks upon 

 the mounted skin of a female Musk-Ox which had been obtained from East 

 Greenland. — Dr. C. I. Forsyth Major exhibited and made remarks on 

 some remains of Cyun from Sardinia, and of a Monkey [MacacuSj sp. inc.) 

 from Mauritius. — Mr. A. H. Cocks, F.Z.S., made some remarks on the 

 period of gestation of the Pine-Marten [Mustela martes)^ which he had ascer- 

 tained could not be less than 94 days and might possibly be as much as 

 106 days. — Mr. J. S. Budgett, F.Z.S., read a paper on "The Breeding- 

 habits of Protoptenis, Gymnarchus and some other West-African Fishes," in 

 which an account was given of a collecting-trip made during last summer to 

 the swamps of the Gambia River in search of the eggs of Polypterus. The 

 eggs of Polypterus were not discovered, though a very young specimen measur- 

 ing only one inch and a quarter in length was found. In this small specimen 

 the dermal bones were not developed, and the external gills were of very 

 great size, the base of the shaft being situated immediately behind the spi- 

 racle. The dorsal finlets formed a continuous dorsal fin. While Mr. Budgett 

 was in search of the eggs of Polypterus the underground nests of Protopterus 

 annectens were found in abundance, and complete series of eggs and larvae 

 were preserved. The male Protopterus was found to live in the nest until the 



