STENO KOSTKATIH. 



29 



aud nulinieutaiy trausverse process of the axis were visible bebiud 

 tbose of tbe atbis. Tbe tbird cervical bad ou eacb side a perpendicular 

 flat triaugalar process, pierced by a large foramen. In tbe following 

 tbree vertebnx} tbe bony ring surrounding tbe foramen was incomplete. 

 In tbe seventb cervical tbere was a tolerably long diapopbysis, but no 

 parapopysis. Tbirtecn i)airs of ribs were present, tbe first of wbicb 

 was mucb tbe largest. The first six were attacbed to tbe vertebrte by 

 botli neck and bead. 



Tbe first neural spine of tbe dorsal region was on tbe second dorsal 

 vertebra, and, witb tbe next following, was directed mucb backward. 

 Tbe last ten caudal vertebra^, wbicb were located in tbe flukes, were 

 witbout neural arcbes. To^enty-tbree cbevron bones were present, tbe 

 tbree posterior ones being rudimentary. 



Tbe longest transverse process was on tbe second lumbar vertebra. 

 Tbe last trace of a transverse process was found on tbe fourteentb cau- 

 dal vertebra. Tbe first perforations of tbe transverse processes for tbe 

 passage of tbe caudal artery were in tbe sixtb and seventb caudal ver- 

 tebrae 



Five metacarpal bones were present. Tbe formula of tbe pbalauges 

 was as follows: I, 4 ; If, 8; III, C; IV, 3; V, 3. 



Dr. Liitken gives, in addition, tbe following measurements of eigbt 

 skulls in tbe Copenbagen Museum. Two of tbese, Nos. 2 and 5, be re- 

 gards as possibly belonging to a separate but closely allied species. 



Measurements of ehjUt skulls of Stcno rostialus. (From Liitken.) 



One of tbe two skulls (Nos. 2 and 5) regarded as belonging to a 

 separate species is from tbe Pacific Ocean. It was obtained by Pro- 

 fessor Reinbardt at Honolulu, wbile on tbe Galathea expedition. 



