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XI. The comparative anatomy of the male genital tube in 
Coleoptera. ~ By D. SwHarp, M.A.,, F.RS., and 
F. Murr, F.E.S. ff 
[Read February 7th, 1912.] 
Puates XLIT-LX XVIII. 
ARRANGEMENT OF MEMOI 
I. INTRODUCTORY. 
II. ORISMOLOGY AND TECHNIQUE. 
III. MorrHoroey. 
A. ANATOMY. 
B. GENERAL. 
IV. FUNCTION. 
V. TAXONOMY AND PHYLOGENY. 
VI. ALPHABETICAL INDEX TO FAMILIES. 
VII. EXPLANATION OF PLATES. 
allie 
I. INTRODUCTORY. 
THE object of this memoir is to review the structure of 
the male genital tube throughout the Order Coleoptera. 
This is not equivalent to a review of the male copulatory 
organs. The modifications of the abdomen itself are 
extremely extensive and varied, but we have perforce 
omitted them, because the time at our disposal was 
scarcely adequate for the accomplishment of the work, 
- the results of which are here presented. 
Mr. F. Muir, having returned to England for a year’s 
vacation in order to recruit his health after a long period 
of arduous entomological work in the tropics, joined the 
senior author at Brockenhurst, and the two combined 
their efforts for the production of this memoir. 
A work of the kind is almost indispensable in the 
present state of Coleopterology, and the authors hope 
that it will be received as a much needed contribution to 
a great subject. A subject too as to which, notwith- 
standing its slight advancement, great misconception is 
prevalent. 
TRANS, ENT. SOC. LOND. 1912.—PART III. (DEC.) KK 
