BenhaM. — On a Young Rorqual. 153 



each row, are about £ in. long. Along the upper and lower 

 jaws is a horizontal series of similar white hairs of larger 

 size. Along the upper jaw is a row of four bristles, and two 

 or three black hairless follicular pits anteriorly. The first hair 

 is 8f in. from anterior end of the snout, the last 15f in., and 

 the series lies about l£in. above the lower margin of jaw. 

 The hairs on the lower'jaw constitute a row of five bristles, 

 the first of which is 10 in. from the anterior end, the last 

 15|in. The row slopes downward posteriorly, so that, while 

 the first hair is l\ in. below the upper margin, the last is 

 5|in. below. The" hair is £in. in length. This line follows, 

 more or less accurately, the line of junction between grey 

 and white. The spaces between bristles, starting from an- 

 terior end of series, are : If in., 2£ in., l^in., 1-J in. 



The baleen is coloured as above. Each row forms an 

 elegant curve close to the outer margin of the roof of the 

 mouth. The right and left rows nearly meet anteriorly, 

 where each is very narrow and the baleen short. The rows 

 then diverge, following the outline of the jaw, but behind 

 the angle of the gape curve inwards for a short distance. 

 The total length of the row, measured in a straight line, is 

 1 ft. 9 in. The greatest distance separating the rows is 6^- in. 

 This, then, is maximum width of palate. The greatest length 

 of baleen is 4£ in., and this is not the outermost margins ; the 

 breadth is If in., which is retained for greater part of course. 



The animal was a young female, and had not long been 

 born, as the navel was a slit-like depression 2 in. long and 

 about Jin. deep, with vascular walls; it is situated 5 ft. 4 in. 

 from tip of lower jaw. On each side the skin shows a pink 

 patch a short distance above the navel. The navel is situated 

 in an oval or diamond-shaped area with rounded angles, 

 limited by a shallow furrow, and from the posterior angle a 

 distinct furrow passes backwards to the urino-genital depres- 

 sion, or vulva, which lies 1ft. 5 m. behind it. 



This vulva is slit-like, the lips being close together ; but 

 this slit, which is 6£in. long, bifurcates posteriorly, leaving a 

 small triangular area, which is the base of a ridge which can 

 be traced forwards into the vestibule. On pressing apart the 

 lips a deep depression is visible, the bottom of which is sur- 

 rounded by a folded wall. The depression is funnel-shaped, 

 but compressed laterally, and along the anterior and posterior 

 sloping wall a ridge passes downwards towards the bottom. 

 The anterior ridge terminates in a freely projecting subconical 

 clitoris, overhanging the urinary aperture, which is transversely 

 extended and has soft plicated lips. 



The clitoris is separated from the ridge by a transverse 

 curved furrow. The posterior ridge is at its base more pro- 

 minent, but gradually diminishes towards the bottom of 



