ART. 13 ANATOMY OF CHINESE FINLESS PORPOISE HOWELL S 



Skeletons : 



49544, sex (?). No history. 



240862,' im. female. Woosung, Kiaugsu, China. May, 1924. F. R. Wulsin. 



240001, sex (?). Woosung, Kiangsu, China. May 5, 1923. F. R. Wulsiu. 



240002, sex (?). Woosung, Kiangsu, China. May 5, 1923. F. R. Wulsin. 



240002, sex (?). Woosung, Kiaugsu, China. April 25, 1923. F. R. Wulsin. 



240003, sex ( ? ) . Woosung, Kiangsu, China. April 10, 1923. F. R. Wulsiu. 



239990, sex (?). 

 Ishikawa. 



Hokudo, Zenra Prov., Korea. June 20, 1923. Doctor 



For the present study there have thus been available 11 specimens.^ 

 Those collected by F. R. Wulsin were gifts to the Museum from the 

 National Geographic Central China Expedition, and the individual 

 secured by C. M. Hoy was obtained during the Chinese expedition 

 sent out by Dr. W. L. Abbott. 



The myological portion of the present contribution is based upon 

 the dissection of two of the immature females, which apparently 

 were fully developed sexually but were smaller than any other 

 cleaned skeleton available. Number 240864 was the first one dis- 

 sected, and the parts in the worst condition were passed over with 

 but cursory attention. Number 240862 was the one next invest! 

 gated. 



EXTERNAL FEATURES 



Measurements. — For the reasons that Allen (pp. 244-245) has 

 already given such a detailed list of external measurements of one of 

 the specimens which he investigated, and that these are deemed to 

 be of slight value when taken from specimens that have been pre- 

 served and varyingly distorted, but few measurements are here 

 presented (in millimeters). 



Length to fluke notch 



Circumference of peduncle 



Width of flukes 



Length of right flipper from axilla 

 Width across mouth 



240865 240864 240862 240863 



1,348 



158 



392 



219 



98 



948 

 127 

 255 

 133 



87 



964 

 132 

 270 

 172 



82 



600 



96 



150 



110 



60 



Color. — Observations concerning the color of alcoholic material 

 may be of little value. Be that as it may, the adult female before me 

 is very dark sooty, almost black, as is the Wulsin juvenile, and these 

 two are uniformly of a single shade. All of the remaining speci- 

 mens, on the contrary, are considerably lighter, the hide being sug- 

 gestive in color and appearance of a piece of boiled liver, but 

 smoother. Especially when dry the underparts of these immatures 

 are definitely lighter than the more dorsal area, the dividing line, 



1 Number 240862, as an alcoholic, was dissected and the skeleton then cleaned. 



