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Show 264 MR. F. M O O R E ON T H E [May 5, the skull, and forming there a crest of considerable size on the right side only. Unfortunately I have not access to all the necessary works of reference to inquire if this question, as to the causes, growth, and uses of asymmetry in the Toothed Whales, has already been treated by naturalists in the northern hemisphere; but it is evident, from an examination of the drawings representing the three views of the foetal Cachalot (Catodon) in the Museum of the Royal College of Surgeons, that the remarkable asymmetry exists already in that early stage of existence. O n the other hand I may ask, why should the Balanida have a symmetrical skull, breathing, as they do, exactly in the same manner as the Toothed Whales ? Eschricht, who has described the important changes which the skulls of the Balanida undergo, has shown that they are in the foetal state quite symmetrical, although later on slight inequalities in the maxillee are sometimes discernible. As far as I am aware, no cognizable reason can be given to account for this asymmetry in the skull of the Toothed Whales, and we are therefore almost led to assume that some of their remote ancestors were deformed by some accident and that thus this asymmetry of the skull was inherited by their progeny to a more or less extent, because it is difficult to believe that in the struggle for existence, in the adaptation to altered circumstances and a different mode of life, this strange asymmetry could be of any vital importance. The study of the ontogeny of this species and of the phylogeny of the family to which it belongs, and of its extinct ancestors is therefore of the highest importance in considering the question of the origin of species, because every step in that direction is a clear gain to science. It may be possible that this point has already been treated at length by some naturalists ; but I a m not aware that this is the case ; and m y wish to draw the attention of m y brother naturalists in N ew Zealand, and other countries where an opportunity is offered by acquiring specimens of Toothed Whales in all stages of growth to study this striking fact in osteology, has been m y only motive for alluding here more fully to it than I should otherwise have done. 3. List of Diurnal Lepidoptera collected in Cashmere Territory by Capt. R. B . Reed, 12th Regt., with Descriptions of n e w Species. By F R E D E R I C M O O R E , India M u s e u m, London. [Received March 27,1874.] (Plate XLIII.) The only notices hitherto published of the species of Lepidoptera known to inhabit Cashmere are those by Kollar in Hiigel's * Kashmir,' and recently by Capt. Lang of a small collection made at Goolmurg by the late Dr. Jerdon. |