374 ADDITIONS ASD COEHECTIONS. 



Physalus antiquorum (page 144). 



Dr. Murie, in Proc. Zool. 800. 1865, 206, gives some details of tte 

 anatomy of this species, with figures. 



A specimen, apparently of this species, was cast ashore on the 

 beach at Pevensey in November 1865. Mr. W. Flower, who went to 

 examine it, informs me " it is 67 feet long ; the baleen is very light- 

 coloured, almost like that oi Balmnoptera rostrata on the inner hairy 

 side, but slate-coloured externally." The cuticle is nearly aU off, 

 and it smells abominably. 



Professor LiUjeborg ijoforms me there is a stuffed skin and the 

 skeleton of a young common Finner (P. antiquorum), taken at the 

 mouth of the Seine in 1847, in the Paris Museum, which is 14 metres 

 (above 40 feet) long. The lateral process of the second cervical ver- 

 tebra in this specimen has the two lobes united so as to form a ring 

 on one side, and the lobes truncated and separate on the other, " as 

 in Benedenia." 



This form of the second cervical is to be observed in all the young 

 specimens of Physalus ; but that does not prove that Benedenia is a 

 young Physalus. 



After the remarks on Physalus Duguidii, (at page 160) add : — 



* The lateral rings of the cervical vertebree as long as the diameter ^f the 

 body of the vertebree. 



1. P. antiquorum, p. 144. 



2. P. Duguidii, p. 158. 



** The lateral rings of the cervical vertebree shorter than the diameter of the 

 body of the vertebree. 



8. Physalus Patachonicns. 



The neural canal almost half as vdde as the diameter of the body 

 of the vertebrae. The lateral processes of the atlas subcentral, sub- 

 eyhndrical, blunt. The rings of the second, third, and fourth cervical 

 vertebrae shorter than the diameter of the oblong bodies. The upper 

 lateral processes of the SLx.th cervical bent down. 



Physalus Pataohonicus, Gray, P. Z. 8. 1865, 190. 

 Balsenoptera Patachonica, Surmeister, P. Z. S. 1865,195; Ann. SfMag. 

 N. H. 1865, xvi. 59. f. 1-11 (figu;res of bones). 



Inhab. Eiver Plata. Museum of Buenos Ayres. — Burmeister. 



" I now send you drawings of the Whale in the Buenos Ayres 

 Museum, drawn by myself, and, as I beheve, exact to nature. 



"Fig. 76. The skull. "We have two specimens — one complete, 

 the other consisting only of the hinder part, without the jaws. In 

 the former the upper jaws are no longer in position, but separated 

 from the cranium, and therefore little importance can be attached to 

 the width of the opening between the intermaxillary bones in the 

 anterior part of the cleft between them ; it may be somewhat ex- 



