JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATE XIV, 
Illustrating E. Ray Lankester’s paper on the Sexual Form 
of Chcetogaster Limncei. 
Fig. 
1. — Reduced copy of M. d’Udekem’s figure of the genitalia of Ch. dia- 
phanus, from the ‘ Bulletins ’ of the Belgian Academy, vol. xii, 
1861, p. 243 ; sr, so-called seminal receptacles ; ev, efferent ducts 
(entonnoirs vibra tiles) ; hp, hard pieces ; ov, ova. 
2. — Sexually mature Chcetogaster Limncei, an outline sketch; between 2 
and 3 the clitellus is represented. 
3. — Larval Chcetogaster Limncei, with complete and growing zooids. There 
is but half the number of bristles in each fasciculus, which is 
present in the sexual form. 
4. — Part of the genitalia of Ch. Limncei : ov, the anterior masses of ova ; ov", 
a second posterior pair; n, the nerve-cord ; s, s, the most anterior 
pair of segmental organs ; hr, hr, the most anterior pair of fasci- 
culi, with sixteen bristles in each ; mm, the muscles of the fasciculi. 
5. — The testis of Ch. Limncei in an early state of development; p, its 
pedicle (?) 
6. — Portion of the integument of the sexual form of Ch. Limncei treated 
with acetic acid ; c , the cuticle ; ma, the matrix ; m, the muscular 
layer. 
7. — From Ch. Limncei in a maturer state than in fig. 4 or fig. 5 ; t, testis ; 
bw, body-wall ; at, alimentary canal ; ov, ova ; sp, spermatozoa. 
8. — The first fasciculus and genital setce in a sexually mature Ch. Limncei. 
9. — Cells of the clitellus of Ch. Limncei ; a, with acetic acid ; b, untouched. 
