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WINCKWORTH :, ON BERGH 21 
A proper and sufcient reference therefore should give the volume (2, 7 or9)and page, 
adding Suppl. after 2 in the case of Theil. 4. Thus: 
Bergh, R. 19374. Semper’s Reisen, 2, 309-314. 
Bergh, R. 1880. Semper’s Reisen, 2 Suppl. 21. 
Bergh, R. 1905. Semper’s Reisen, 9, 69. R 
If further detail is required the number of the Heft may be added between volume 
and page: Bergh, R. 1876. Malac. Unt. Semper’s Reisen, 2, Heft 10, 413. 
The dates of publication, as far as I have traced them, are given below. 
Up to 1878, the dates are those given by Bergh in part 14, page xlü ; 
the dates for the first three parts of volume 7 are given on page 158 of that 
volume ; the other dates are dates of receipt at the British Museum 
(Natural History). e 
Semper’s Reisen, volume %—Malacologische Untersuchungen 
date part pages plates - contents 
20 Feb. 1870 1 1-30 1- 8 Cratena .... Flabellina. 
10 July 1871 2 49-118 9-16 Phyllobranchus. Oyerce. 
8May 18572 3 137-176 17-20 Stiliger. Plakobranchus. 
15 Dec. 1872 _ 4 177-203° 21-24 Elysiadae. 
250ct. 1873 5 205-246 25-31 Limapontia. Phylliroe. Acura. 
10 June 1874 6 247-285 32-35 Pleurophyllidia ... Pleuroleura. 
21 Sep. 1874 7 287-314 36-39 Bornella. Hero. "' 
10 Mar. 1975 8 315-343 40-45 Seyllaea. 
30 Sep. 1875 9 345-376 46-48 Tethys. Melibe. 
4May 1876 10 377-427 49-53 Phyllidia ... Kentrodoris. 
28 Apr. 1877 11 429-494 54-57 Orodoris ... Chromodoris. 
15 Dec. 1877 12 495-546 58-61 Platydoris ... Trippa. 
8 July 1878 13 547-601 62-65 Hexabranchus ... Fracassa. 
603-645 . 66-68 LZamellidoris .... Asteronotus. 
23' Dev. 1878, 14 i-Ji _ Uebersicht, Register, u.s.w. 
3Dec. 1884 15 647-754 69-76 Chromodoris ... Marionia. 
2Aug. 1888 16,1 755-814 77-81 Nud. Mauritius. £ 
27 Mar. 1889 16,ii 815-872 82-84 Nud. Mauritius. 
9 Apr. 1890 17 873-991 85-89 Nud. Sunda-Meeres, u.s.w. 
22 July 1892 18 995-1168 -—- System, Register. 
Supplement to volume 2 
1880 1° -1-18 A-F Nachträge. 
18831 2 79-128 _G-L Nachträge. 
19May 1886 3 131-225 M-R Marseniaden. 
26 July 1887 4 227-289 S-Z, £ Marseniaden. 
Semper’s Reisen, volume ?—Malacologische Untersuchungen 
* Mar. 1897 1 1- 51 1- 4 Pleurobranchaea. 
*Dec. 1897 ° 2 53-115 5-8 Oscaniopsis ... Oscaniella. 
* Nov. 1898 3 _ 117-158 9-12 Pleurobranchus. 
27 Mar. 1900 4 159-208 13-16 Haminaea ...Plakobranchus. 
29 Jan. 1901 5 209-256 17-20 Bullacea. 
15 Oct. 1901 6 257-312 21-24 Bullacea. 
7 Oct. 1902 7 313-332 25-29 Acteon .. . Oscaniella. 
* Received at the British Museum, 6 April 1897, 15 February 1898 and 22 November 
898. 
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