completed volume. In the case of some volumes the dates of issue hâve been made available 

 by OosTiNGH ^), and I give below the complète information for the volumes dealing with various 

 familles and gênera of the Pelecypoda. 



KUSTER, H. C. und KOBELT, W. — Die Gattungen Spondylus und Pecten. Band VII, Abth. 2. This mono- 

 graph was started by KuSTER, and pp. i — 128 and pis. I — XXXVI were published by him up to 

 1859. After his death, as is indicated in the introductory remark on p. 129, the remainder of the 

 monographs was completed by KOBELT. 



Pages 





Plates 





Dates 



— 





I — V, XIV 





1842 



— 





XI — XIII 





1843 



— 





VI, XV, XVIII 





1844 



— 





VII, XVI, XVII 





1848 



1—32 



VIII, 



villa, IX, X, XIX- 



-XXX 



1858 



Thiele, J. 



— F 



amilia Limidae ^). 



Band 



VII, . 



Pages 



Plates 



Dates 



33-128 



XXXI — XXXVI 



1859 



129 — 152 



XXXVII — XLII 



1886 



153 — 224 



XLIII— LX 



1887 



225 — 296 



LXI— LXXII 



1888 



Pages Plates 



I — 24 I — V 



24 — 48 



49—66 VI— X 



DUNKER, W. — Die Gattung Avicula. Band VII, Abth. 3. 



Pages Plates 



1 — 56 I — XVIII 



57—68 XIX — XXIV 



69 — 84 XXV — XXVII 



Dates 

 I918 

 1919 

 1920 



Dates 

 1872 

 1879 

 1880 



Clessin, s. — Die Famille Malleacea. Band VII. Abth. i. This monograph was originally started by 

 H. C. KlJSTER, and pp. i — 16 of the text and pis. I, II, XVI — XXI were published in 1840, 1841. 

 After his death KOster's text was canceled, and a new text and the remainder of the plates 

 were issued by Clessin. 



Pages 



Plates 







Dates 







Pages 





Plates 



Dates 



1—8 



l, II, XVI— XXI 







1840 







1—72 



III- 



-xva, XXII— XXVIII 



1890 



9 — 16 



— 







184I 







73—108 





XXIX— XLVI 



189I 



KOBELT, W. - 



- Die Gattung Arca. 



Band 



VIII, 



Abth. 2. 











Pages 



Plates 







Dates 







Pages 





Plates 



Dates 



— 



I — IV 







184I 







137—160 





XXXV— XL 



1890 



1-56 



V — XVI 







1888 







161 — 238 





XLI — XLIX 



189I 



57—136 



XVII— XXXIV 







1889 















KiJSTER, H. c. und Clessin, S. — Die Famille der Mytilidae. Band VIII, Abth. 3. Pages i — 12 of the 

 text and plates I — VI were issued by KuSTER, and the remainder of the work was completed by 

 Clessin after his death. 



Pages 



Plates 



Dates 



Pages 



Plates 



Dates 



1-8 



I, III,- V 



1840 



125—132 



XXXIII, XXXIV 



1888 



9 — 12 



II, VI 



1841 



i33-'56 



XXXV, XXXVI 



1889 



13—28 



VII— XII 



1886 



157—170 



— 



1890 



29 — 124 



XIII— XXXII 



1887 









i) OosTiNGH, C. H. — Geol. Comm. Agr. Univ. Wageningen, N" 9^ pp. 322 — 362 (1925). 



2) No bibliographical information has been available in référence to this work, but the copies, which I hâve been able to examine, 

 had the original wrappers and the only doubt I hâve is in référence to plates, but as the names of the species illustrated are not printed 

 on the plates, the above dates may be taken as approximately correct. 



