| OCR Text |
Show 910 ON THE EARTHWORMS OF THE " SKEAT EXPEDITION." [Dec 4, It is plain, therefore, that tbe minute anatomy of this species bears out the very close external resemblance between the male pores upon segment xviii. and the " genital papillae" upon segment xix. W e may possibly regard the mass of gland-cells in the latter as representing the glandular investment of the spermiducal gland of the Fig. 7. Anterior end of Amyntas hiporus. X 4. P, papilla on segment xix. former. In any case this is the nearest approach to be seen in a true Amyntas of the originally present second pair of spermiducal glands which occur in so preponderant a proportion of Acantho-driloid forms. |
