252 Bashford Dean Memorial Volume 



arranged that should by any chance specimens escape me at Misaki, they should be cap- 

 tured for me a little later in the fish market in Tokyo. In this way I finally secured a 

 number of the much priced embryos." 



That the reader may get a clear idea of the location of the Misaki Biological Station, 

 where Dean resided while studying Chlamydoselachus, and of the waters from which his 

 specimens were obtained, we give here in mere outline as Text-figure 3 a reproduction of a 

 map drawn by Prof. I. Ijama and found among Dean's materials. 



We cannot state exactly how many specimens Dean obtained while in Japan, nor 

 how many were taken for him during his absences. However, in his notes we find an 

 undated table listing twenty-one adult specimens of both sexes. Another list (written, 

 we believe, by the Japanese collector) records ten fish, of which some were taken in 1902, 

 some in April 1903, and others in February and April 1905 — all while Dean was in 

 America. Elsewhere, Dean lists three specimens taken in 1905 — apparently not the 

 same as the above. Among these notes is a letter from S. Fujita recording the capture in 

 1906 of a large female with five embryos, and speaking of the sending of embryonic 

 material to Dean in America. 



Scattered throughout Dean's notebook are various dated notes recording the capture of 

 specimens with embryos or their purchase in the market at Tokyo. Thus, in his hand- 

 writing, we find this interesting record: "1905, Kuma fished for about 5 weeks in the best 

 ground off Odawara [on the west side of Sagami Bay] — special tackle — squid bait, — 

 depth from 300-600 fathoms. Took 3 fish, — several Heptanchus.^' The internal evi- 

 dence indicates that these three fish are undoubtedly the three specimens of Chlamydo' 

 selachus listed in the notebook and dated 1905, with the notation "Odawara." 



We find this man Kuma named in Dean's notes in several places. Knowing Dean's 

 habits when in the pursuit of rare embryological material, we conclude that Kuma was in 

 Dean's employ. Thus in another place we find this note: "Kuma, 300-400 fathoms: 

 average 350 hiro- [1650 feet] — up to 500 [2500 feet]. 18 days fishing, two Rabu^a 

 [native name for Chlamydoselachus], Odawara, to Oct. 1, 1905." 



Thus we cannot be sure how many specimens were obtained by Dean, but eliminating 

 what we believe to be entries referring to the same fish, we find pretty definite proof that 

 he obtained 39 specimens of both sexes. Some of these entries may possibly be duplicates. 

 On the other hand, from Fujita's letter it is plain that other unlisted specimens were 

 taken, their eggs and embryos cut out and sent to Dean. It is of course unfortunate that 

 we do not have more complete records of Dean's specimens; but we believe that the list 

 of 39 is at least not an exaggeration. He himself (1904, p. 204) says of Misaki: "In the 

 course of a year the neighborhood yields about a dozen specimens of the frilled shark, 

 Chlamydoselachus.'' It should be recorded that one of Dean's fish, a female, measured 

 1960 mm. (77-1 in., 6 ft. 5.1 in.) "over all." This is the largest Chlamydoselachus of which 

 there is any record. 



^A hiro, the Japanese fathom, is five feet, the fisherman's measure of depth taken on a fishing line held in the hands stretched out 

 horizontally. 



