The J^atural History of the Frilled Shar}{ 



261 



and 40 mm. depth — a ratio of 6.67 to 1. This fish is also a female and judging from the full 

 abdomen it is gravid. 



Such slenderness of body as is exemplified in three of these specimens is found in no 

 other species of shark. While in size this animal does not measure up to the popular con- 

 ception of a "sea serpent," still the size of the adult specimens referred to is considerable. 

 For further data see Tables III-VI. It will be noted that in some extreme cases the fish 

 reaches a length of more than six feet. 



LENGTH OF CHLAMTDOSELACHUS 



In Tables III, IV, and V we have brought together all data available to us pertain- 

 ing to the length of Chlamydoselachus . From the length, the size may be roughly inferred 

 by consulting the illustrations, or the ratios of length to depth already given. The speci- 

 mens are tabulated by sexes and by lengths in ascending order. We note also the country 

 of origin, the authority on whose word the fish is listed, and the institution in which 

 it is or was preserved. These tables will also give some idea of the number of specimens 

 that have come into the hands of scientists. For other lists showing the locations of 

 museums containing specimens, and the number therein, see Tables I and II. 



TABLE III 



LENGTHS OF CHLAMTDOSELACHUS, SEX UNKNOWN 



It is to be regretted that the authors cited as authorities for the length, source, and 

 present locations of the specimens listed in Table III did not give the sex of each fish, so 

 that it might be placed in either Table IV or Table V. 



Since Tables III, IV, and V were formulated, averages made, and the data 

 incorporated in various sections of this article, we have learned from Dr. Victor Pietsch- 

 mann that the Vienna Museum contains a male 1241 mm. long and a female of 964 mm. 

 These are the specimens obtained by Doderlein and listed by Collett. 



We have also made a cursory examination of the female specimen brought recently 

 from Japan by Doctor White (see page 253). This measures 1398 mm. {55 in.) in total 

 length. Since the specimen has been coiled up in a container and is rather stiff through 

 preservation in alcohol, this measurement is approximate only. It may be noted that 

 this fish is only slightly below the average in length. 



