ADBIIIONS AND CORRECTIONS. 



387 



At page 196, add to characters of Section I. : — 



The pectoral Jin short, broad, truncated. The deep cavity on the crown of 

 the sJmll surrounded by perpendictdar walls formed by the doubled-up 

 maxillaries and occijnct. Catodontina. 



Add to genei'ic characters : — 



The athis oblong, transverse, nearly twice as broad as high ; the 

 central canal subtrigonal, narrow below (see fig. j). 207). 



The cervical vertebraj in C'atodon are united into a single mass by 

 their bodies, the neural arch, and the lateral processes. The lateral 

 processes of the anterior vertebrse are produced, and form a thick, 

 subconical, triangular prominence on each side of the mass ; the front 

 surface is nearly flat ; and the lateral processes of the hinder vertebrae 

 are shorter and shorter to the last. The hinder surface shelves from 

 before backwards, and is arched over with some conical prominences, 

 which indicate the lateral processes of the different vertebrae of 

 which the mass is formed. The fii'st dorsal vertebra is sometimes 

 partially anchylosed with the seventh cervical vertebra. The arm- 

 bones are very short. 



Catodon macrocephalus (page 202), add to synonyms : — 



Physeter macrocephalus, Murie, P. Z. S. 1865, .390. f. 1, 2 (figures of 

 deformed lower jaws). 



The skeleton in the Paiis Museum, which was purchased in London, 

 appears to be made up of the bones of several animals, as it has more 

 vertebra} and ribs than any of the skeletons which have been pre- 

 pared from a single specimen. It is veiy imjierfect in other respects, 

 wanting the phalanges, &e. 



The British Museum has received the skeleton of an adult Sperm 

 Whale that was cast ashore at Wick, on the coast of Scotland. 



The MiLseum of the Royal College of Surgeons has received the 

 skeleton of a Sperm Whale taken on the coast of Australia. 



Mr. Flower, from the examination of the skeleton at Burton Con- 

 stable, the one from Scotland in the British Museum, and the one 

 from Australia in the Royal College of Surgeons, believes that they 

 are most probably all one species. The Sperm Whale is essentially 

 an inhabitant of the tropical seas ; the specimens which reach the 

 shores of Europe and the Southern Ocean are probably only stray 

 animals thrown out of their usual course by accidental circum- 

 stances ; and this explains why they only occur at distant periods. 



After end of Catodon (page 2Ki), insert : — 



2. MEGANEURON. 



Animal unknown. 



The atlas is thin, high, being only about one-fourth wider than it 

 is high ; the lower and lateral margins are arched, the lower edge 

 being the most so. The neural arch is low, transverse, with a ncarlv 



2c 2 



