546 Bashford Dean Memorial Volume 



line of attachment of the stomach mesentery". From this, one may judge that her speC' 

 imens were either immature or with ovaries spent. Deinega's specimen (1925) had had 

 the ovaries removed. Smith (1937), however, gives definite data, particularly in that he 

 records the sizes of eggs found in the ovaries of two of his fish. Unfortunatley, there are 

 no dates of capture of any of his specimens. 



In a sexually immature female specimen, 1398 mm. long (Text 'figure 10), Smith found 

 that the ovaries were small and exhibited perfect bilateral symmetry. The largest fol- 

 licles measured only 10 mm. in their greatest diameter. In a larger and nearly mature fish, 

 1550 mm. long, he found that both ovaries were well developed and contained follicles 

 ranging in size up to 17 mm. in diameter as shown in Text-figure 11. Of the follicles large 

 enough to be easily distinguished macroscopically, there were 13 on the left and 15 on the 

 right. Some of those in the left ovary were larger than any in the right organ. In sexually 

 mature specimens, 1350 and 1485 mm. long respectively, he found the ovaries of the right 

 sides were spent and that those of the left sides were intact but small and contained only 

 very small ovocytes, none more than 6 mm. in diameter (Text-figures 14 and 15). 



In Dean's notebook on a pasted-in sheet (from its phraseology evidently from one of 

 his Japanese collectors) are two records concerning the ovaries. The first is dated 

 February 8, 1905, and reads ''Six immature eggs in left ovary" of a 1500-mm. female. 

 Under date of April 30, 1903, this entry occurs: "Three immature eggs were in the left 

 ovary and nine immature eggs were in the right ovary" of a female 1670 mm. long. How 

 large these eggs were cannot be stated, but at least they were of considerable size. Never- 

 theless, for another fish, we do have measurements of the eggs. 



There is in this same notebook a rough pencil sketch and some notes in Dean's own 

 writing, showing that on April 27th he dissected a 1960-mm. female (the largest Chlamy 

 doselachus on record). This fish had in the right ovary 11 eggs in two rows (nine measur- 

 ing 70 x 30 mm. and two 60 x 30 mm.), and 5 (70 x 30 mm.) in the left ovary. These large 

 eggs are found on the margin of the genital fold precisely as they are shown in Text-figure 

 11 (Smith's 1550-mm. specimen), and as I have found them in mature ovaries in sharks of 

 southern Florida. These eggs were surely approaching maturity. 



Among Dean's Chlamydoselachus records is a faded photograph of the viscera of this 

 same female. This shows the 5 large eggs on the left side, but on the right only 6 or 7 

 can be counted — the precise number is uncertain because some are covered by the other 

 viscera. Lastly there is an incomplete water-color sketch of this same dissected fish. The 

 photograph and the color sketch were evidently intended to furnish the basis for a finished 

 figure in color. This, unfortunately, was either never made or has been lost. Dean's 

 photograph is faded and the ovaries with their eggs are too much obscured by other 

 viscera to permit its use. The wash drawing and pencil sketch are plainly unfinished. 

 But fortunately other photographs are at hand to show these organs. 



Momose in 1938 procured from Sagami Bay a 1510-mm. female having 10 nearly 

 ripe eggs (size 80-83 mm.) in the ovaries — 5 on each side. His figure is poorly printed on 

 soft paper and is not suitable for reproduction. But, in answer to a request conveyed 



