MEMOIR OF MARTIN F. WOODWARD. 
Lankester, and his last act as a teacher had been to deliver a course 
of lectures at the Royal College of Science that embodied his pre- 
liminary notes for that work. 
In his first Molluscan paper, that dealing with the anatomy of 
Ephippodonta Macdougalli, Tate, he showed that the lattice-like 
valves, which ‘gape’ yet more widely than in its nearest ally, 
Galeomma, are completely invested by the mantle as in Chlamydoconcha 
—in brief, that this pelecypod had an internal shell. 
His second paper, ‘‘Onthe Anatomy of Pterocera,” contained careful 
observations, and the results of some extended experiments, on that 
enigmatical structure the crystalline style, which he regarded with 
Hazay and Haseloff as a reserve supply of food. 
In Natalina Caffra (Fér.) he made a special study of the buccal 
mass and its functions, contrasting them with those of the more 
familar Zestacella. 
Turning next to the larval Oyster, he showed, in contradistinction 
to another investigator, that the dimyarian stage remained, as it 
does at the present day, still to be discovered. 
Three years later he seized a proffered opportunity of describing the 
previously unknown anatomy of Mulleria, which genus he concluded 
to be closely related to the Unionide, although extremely specialized 
in accordance with its fixed mode of life. 
At the same time the anatomy of the minute Adzorbis was occupying 
him, and had to be described from serial sections, a most difficult 
piece of work, very ably accomplished, which resulted in the allocation 
of the Adeorbide to a position in the systematic series between the 
Rissoudee and the Naticide. 
The problem of the systematic position of Donovania then claimed 
his attention, and he was able to demonstrate that it belonged to the 
Buccinide and ranked next to Pisania. ‘This was the first occasion 
on which he was brought face to face with a question of nomenclature, 
an aspect of zoological study to which he was later on led to pay 
more attention. 
The fortunate chance of two members of the Volutide, one rare, 
the other new, coming into his hands for description caused him to 
investigate the scanty information already possessed concerning the 
animals of that family, and to point out that ‘‘we are at present 
incorporating in the Volutidse several forms derived from distinct 
stocks.’”? His researches in this direction were unfinished, for he had 
written to his friend Mr. W. G. Freeman, of the Imperial Agricultural 
Department for the West Indies, in Barbados, to procure specimens 
of Voluta musica, the Linnean type, or at least first-named species. 
These specimens, with others from the same source, had recently 
