97 
evidently no chance with the avenger who is coming down upon him 
mounted on a winged steed. But Pegasus, who, with other prodi- 
gies, sprang from the blood that dropped from Medusa’s head, as the 
conqueror who had cut it off with his harpe traversed the air with 
his gory trophy, immediately winged its flight to Helicon, there to 
become the pet of the Muses. The best version of this mythological 
story relates that when Perseus afterwards killed the sea~-monster and 
delivered Andromeda on the coast of Ethiopia, he effected his pur- 
pose by raising himself in the air through the aid of the wings and 
talaria given to him by Mercury, and not with the help of the winged 
horse on which most of the painters mount him. Professor Owen 
informs me that Roland Savery’s picture containing the Dodo, in the 
Berlin collection, bears the date of 1626 ; and that the colour of the 
Dodo in the Duke of Northumberland’s picture resembles that of the 
portrait of the bird, of life size, by the same painter, now at Oxford. 
L’Estrange describes the hue of the back of the living Dodo which 
he saw exhibited in London “about 1638,” as-of “dunn or deare 
colour.” 
2. Descriptions oF E1gHTEEN New Species oF LAND SHELLS, 
FROM THE COLLECTIONS OF Mr. DEeNNISON AND H. CumInG, 
Esa. By Dr. L. Preirrer. 
1. ANOSTOMA CARINATUM, Pfr. A. testa longe rimata, conoideo- 
lenticulari, solidula, acute carinata, pallida, supra carinam et ad 
suturam anguste castaneo-fasciata ; spira breviter conoidea; anfr. 
5 planiusculis, superis striatulis, ultimo irregulariter et undulatim 
costulato-striato, basi convexo, castaneo maculato, antice scrobicu- 
lato; apertura peripheriam spire continuante, semicirculari, la- 
mellis 6 validis, flexuosis coarctata ; perist. albo, late expanso et 
reflexo, margine dextro ad insertionem foramine magno, oblongo 
munito. 
Diam. maj. 243, min. 19, alt. 13 mill. 
Hab. Brazils. 
2. Heuix Dennisoni, Pfr. H. testa imperforata, subglobosa, 
solida, striatula, non nitente, opaca, alba, strigis crebris, angustis, 
nigricantibus et fulvis, subflexuosis radiata ; spira conoideo-semi- 
globosa, obtusula; anfr. 5 convexis, ultimo rotundato, antice 
subito deflexo, constricto; apertura parvula, perobliqua, lunari, 
intus nitide livida; perist. intus fusco-labiato, marginibus callo 
intrante, saturate castaneo junctis, dextro perarcuato, vir expanso, 
basali dilatato, plano, adnato, castaneo. 
Diam. maj. 20, min. 18, alt. 15 mill. 
Hab. Cuba (Powis). 
3. Herrx MacAnprewiana, Pfr. H. testa imperforata, conoi- 
deo-globosa, solidula, striis incrementi et confertissimis spiralibus 
sud lente decussata, pallide rosea, lineis nigro-spadiceis confertis 
cincta; spira conoidea, apice rubra, obtusa; sutura mediocri ; 
