114 Whale lately taken in the River Crouch. France. 6. Near Biarritz, in 1874. Skeleton in the Bayonne Museum. Great Britain. 7. Near Bo'ness in the Firth of Forth, in 1872. Skeleton in the University of Edinburgh Museum. 8. River Crouch, Essex, in 1883. To these may be added the doubtful case of the whale stranded at Charmouth, Dorsetshire, 1840, the skeleton of which was unfortunately not preserved; and also one taken on the coast of Virginia, North America, in 1858, of which the skeleton is in the Museum of the Academy of Natural Sciences at Philadelphia, and is believed by Cope to belong to this species. The synonomy of this species, as in the case of most other whales, is involved in considerable confusion. The generic name must be determined by the question, which is open to considerable difference of opinion, as to how far it is expedient to multiply such divisions. Balona, Balaenoptera, Sibbaldius and Rudolphius, which have been applied to this animal at various successive times, indicate various stages of subdivision of the Linnean genus at the head of the list. Of the propriety of separating the Rorquals or Fin-whales (genus Balaenoptera of Lacepede) from the Bight Whales (to which Balaena is now restricted) there can be no question; but with the further subdivision of Balaenoptera I am not at present disposed to concur, and would therefore prefer to retain the present species under that name, although there is certainly something to be said for Dr. Gray's first division of the group into three, which he called respectively Physalus, Sibbaldius, and Balanoptera. With regard to the specific name, that of rostrata, under which the species was first introduced to scientific notice in the description given by Rudolphi of the Holstein specimen (Abhandl. Akad., Berlin, 1820, p. 27) cannot be maintained, as it arose from an erroneous identification with the totally distinct species which had already received that name. Cuvier used the term "Rorqual du Nord" for a