KUSTER, H. C. & Weinkauff, h. C. — Die Gattung Mactra. Band XI, Abth. 2. An earlier text of 

 pages I — 8 issued by KiJSTER in 1841 was canceled, but the plates II — V issued by him in 

 1841 — 1842 were utilised by Weinkauff in the monograph. 

 Pages Plates Dates 



1—8 II— IV 1841 



— V 1842 



1—36 I, VI— xn 1880 



Pages Plates Dates 



37—68 Xm— XXIV 1881 



69 — 92 XXV — XXX 1882 



93—124 XXXI — XXXVI 1884 



Clessin, s. — Die Familie der Solenaceen. Band XI, Abth. 3. So far as I hâve been able to find, no 

 text of this monograph was published by KuSTER, but plates III, V were issued by him in 1842. 



Pages Plates Dates 



17 — 96 VIII — XXV 1888 



97 — 106 — 1889 



Pages Plates Dates 



— III, V 1842 



I — 16 I, II, IV, VI, VII 1887 



Clessin, S. — Die Famille Pholadea. Band XI, Abth. 4. 



Pages Plates Dates 



I — 24 I — VI 1891 



25 — 40 VII — XII 1892 



41—88 XIII — XXI 1893 



Clessin, S. — Die Familie Gastrochaenidae. Band XI, Abth. 4a. 



Pages Plates Dates 



— I — III 1893 



I — 24 IV — IX 1894 



25 — 57 X— XXI 1895 



In connection with the rest of the bibHographic work I hâve consultée! not only the two 

 very rich sources of information, viz., Sherborn's "Index AnimaHum" and Woodward's Catalogue 

 of the Library of the British Muséum of Natural History, London, but also had the advantage 

 of referring to the manuscript notes of Dr. C. Davis Sherborn on the various volumes in that 

 rich Library. Dr. Sherborn was also kind enough to help me in looking up any difficult points 

 in this connection, and my grateful thanks are due to him for his unfailing kindness at ail 

 times in connection with this very tiresome work. 



I have drawn up the description of new species and varieties on comparative lines, as 

 after a great deal of work on Molluscs I have found that elaborate descriptions unaccompanied 

 by figures and without any comparative diagnoses with nearly allied species, are often worse 

 than useless. For figures of species I publish, in most cases, direct untouched photographs, 

 as thèse are far more accurate and true to nature, and in the absence of types for comparison 

 such photographs are sure to be far more useful to later workers than drawings, however 

 artistic and accurate thèse may be. In a few cases, where spécimens could not be properly 

 photographed I have resorted to finished caméra lucida drawings. The photographs were prepared 

 under my supervision by Babu S. C. Mondul and the figures were executed by Babu A. C. 

 Chaudhuri and Babu D. N. Bagchi of the Zoological Survey of India with their characteristic 

 skill ; to ail of them my thanks are due for the care they have bestowed on the work. 



The synonymies of the various Indo-Pacific forms published in this work have been made 

 as complète as possible, and notes on most of the classic material in the collections of the 

 British Muséum (Natural History), London, have also be included for making the report as 

 complète as possible. 



An analysis of the results of my studies is published in the following table. In this 

 analysis forms which could not be identified specifically are not included. 



