On two subfossil Whales discovered in Sweden. 



Balaeniclae. 

 First pair of ribs 

 have the upper end • 



undivided 

 Bladebone 



Genera: 



with processus coracoideus 1. Balaena, Linne'. 



without proc. co- perfect 2. Eubalaena, Gray. 



racoideus. Acromi- 



" \ 



[rudimentary . . . . 3. Cap ere a, Gray. 



cloven or biceps 4. Hunterius, Gray. 



MYSTICETE. J. Guay. 



(Whalebone Whales). 



1. Family. Balaenopteridae. J. Gray. 



Provided with dorsal-fin. Fore part of the under side of the body 

 longitudinally grooved. Whiskers short, broad and twisted, <$fc. 



5. Genus PHYSALUS. J. Gray. 



Body particularly slender and elongated, with somewhat small pectoral 

 fins, and the dorsal fin, which is likewise small, situated just in front of poste- 

 rior quarter of the animals length. Processus coracoideus and acromion strongly 

 developed; processus coronoideus high ; 1 st pair of ribs have upper end single 

 and undivided. Number of vertebrae 60 or more; all the cervical vertebrae 

 separate; atlas with lateral processes situated above the middle of the sides, and 

 of a conical form. Epistropheus and some of the succeeding cervical vertebrae, 

 in older subjects, with anmdar lateral processes. Number of ribs 14 — 

 16 pairs. 



In this genus Gray reckons 9 species from Europe, Asia, Africa, 

 New Zealand, and North and South- Am erica, namely: Phys. antiquorum 

 Gray, Ph. Duguidii Gray, Ph. patachonicus (Burmeister) , Ph.? australis, 

 Gray, Ph. brasiliensis Gray, Ph.? fasciatus Gray, Ph. indicus (Blyth), Ph.? 

 Iwasi Gray, and Ph. antarcticus Gray, of which however the six last are 

 very imperfectly known , and some of them , as the notes of interrogation in- 

 dicate, cannot even with certainty be affirmed to belong to this genus. We 

 also consider that two species, referred by Gray to other genera, ought 

 to be classed under this. Benedenia Knoxii Gray, which, according to 

 the opinion first put forth by Gray himself (in Catal. of Osteol. Specim. 



