CONTRIBUTIONS TO THE ANATOMY OF EARTHWORMS. 421 
Contributions to the Anatomy of Earthworms, 
with Descriptions of some New Species. 
- By 
Frank E. Beddard, M.A., 
Prosector to the Zoological Society of London, Lecturer on Biology at Guy’s 
Hospital. 
With Plates XXIX and XXX. 
TABLE OF CONTENTS. 
I. On the Structure of three New Species of Acanthodrilus, with 
Remarks upon other Species of that Genus, p. 421. 
II. Further Observations upon the Reproductive Organs of Eudrilus, 
with Special Reference to the Continuity of Ovary and Oviduct, p. 446. 
III. On Certain Points in the Anatomy of Pericheta, with Description of 
a New Species, p. 457. 
THE present paper contains some of the results of the exami- 
nation of a quantity of material which I have been gradually 
amassing during the last few years. For this material 1 am 
indebted to the kindness of numerous friends at home and 
abroad who have interested themselves in the matter. For the 
most part the specimens which are described here were in a fit 
state of preservation for microscopical study. 
I. On the Structure of three New Species of Acanthodrilus, 
with Remarks on other Species of the Genus. 
Some time since I received from the Falkland Islands eight 
or nine examples of a small species of Acanthodrilus. The 
specimens were collected and preserved by Dr. Dale at the 
request of Mr. Coleman, the Secretary of the Falkland Islands 
Company. 
VOL, XXX, PART 4,—NEW SER. EE 
