62 0:> THE OSTEOLOaV OF THE SHORT-XOSED SPERM-WHALE, [Feb. 4. 



millim. 



Olecranon, length 25 



Total breadth of carpus 80 



Digits : Total length, including cartilage : — 



Left hand: I. cUgit 52 



11. „ 185 



III. „ 158 



IV. „ 114 



V. „ 52 



Right hand': I. „ 55 



II. . 183 



III. „ • 148 



IV. „ 102 



V. „ 68 



List of the memoirs to ivhich references are made. 



1. Wall : " History and Description of the Skeleton of a iJ^ew 



Sperm- Whale." Sydney, 1851 (reprinted 1887).- 



2. Owen : "On some Indian Oetacea." Trans. Zool. Soc. vi. 1865, 



p. 30. 



3. Krefft : " Notice of a New Species of Sperm-Whale." Proc. 



Zool. Soc. 1865, p. 708. 



4. V. Ha AST : "On the Occurrence of a New Species of Euphysetes 



on the Coast of New Zealand." Tr. N. Z. Institute, vi. 

 1873, p. 97. 



5. Van Beneden & Gervais : ' Osteographie des Cetaces,' pp. 349, 



515, pi. 61 (1880). 



EXPLANATION OF THE PLATES. 



PlATE II. 



Fig. 1. Anterior end of the ventral surface of the skull of Cogia brevieeps (X f), 

 showing the paired premaxillarj' nodules (X) carrying the teeth {t). 

 gr., maxillary gi-oove. mx., maxilla, pmx., premaxilla. vo., vomer. 



2. The external sui-face of the last two ribs (X f) showing what is believed to 

 be the true position of the mdimentary (13th) rib in relation to the 12th. 

 The cartilaginous lower end of the rib is dotted ; the upper region— indicated 

 by dotted outline — is the presumed continuation of the rib to its articulation 

 with the vertebra. At the side of each rib is shown the outline of its 

 transverse section {a). 



3. View of the anterior side of the 13th rib. X 1. 



PXATE III. 



Fig. 4. Sternum of Cogia hreviceps, with the sternal ribs, dorsal aspect. X J. 



5. Hyoid, of which only the right anterior cornu is represented, dorsal 

 aspect. X i. 



PlAXE IV. 



Fig. 6. The right scapula, external surface. X i. 



7. The right pectoral limb, external surface. Some of the distal ctirtilages 

 have been inserted from the more perfect left limb. X i- 



1 Some of the terminal cartilages were imperfect on this hand, and have been 

 restored in gelatine, but not quite accurately. 



