Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
28. 
30. 
dl, 
dz. 
30. 
34, 
Coe and Kunkel— California Limbless Lizard. 401 
PLATE XLIII. 
Urogenital organs of adult female from ventral side, showing both 
ovaries (7.0v and J.ov) perfectly functional and of the same size, 
and the left oviduct (l.od) very rudimentary. The cloaca is 
represented as if transparent so that the position of the openings 
of the ducts and the horizontal shelf separating the dorsal and 
ventral cloacal chambers are shown. x3. 
Urogenital organs of adult female from ventral side, showing a 
slightly different form of the aborted left oviduct and also two 
eggs with developing embryos (uf, ut’) in the uterine portion of 
the right oviduct. x93. 
PLATE XLIV. 
Sagittal section of 60™™ embryo in the region of the cloaca through 
the phallus, showing the large retractor muscle of the phallus 
(r.m) and the large blood spaces (b.v). The oblique groove (gq) is 
also shown in part. One of the cloacal glands is shown at (c.g). 
x 47. 
Transverse section of embryo of same length. x 47. 
Transverse section of terminal portion of phallus of embryo of same 
length, showing the glandlike pits on the distal end (t.p), the 
oblique groove (g), and blood spaces (b.v). x 47. 
Portion of ventral surface of 50™™ embryo shortly before birth, 
showing the phalli projecting from the lateral borders of the 
cloacal aperture and the oblique groove and terminal pits with 
which each is provided. x18. 
Portion of ventral surface of another embryo 70™™ long, showing 
slightly different form of phalli. x 14. 
Slightly different aspect of phalli of another individual. x 20. 
PLATE XLV. 
Transverse section through cloacal region of adalt female, ante- 
rior to opening of oviducts (r.od) and ureters (wv). The minute 
Wolffian ducts persisting in the female are shown below and 
internal to the ureters. The left oviduct is slightly smaller than 
the right. Masses of lymphoid tissue (/) are situated beneath the 
epithelium of the ventral cloacal chamber (v.c). x 32. 
Transverse section of same specimen somewhat more posterior. The 
dorsal chamber (d.c) is much larger, and the genital papilla (g.p), 
at the summit of which the oviducts open, is shown projecting 
from the dorsal surface of the horizontal shelf (hk). External to 
the ureter (w) on the right side of the figure is shown the opening 
of the diverticulum of the same which is present in both sexes. 
x 382. 
