ee 
BRAIN. 49 
The testes of the male are oval glands about 9 by 6 mm. bound by a short 
and rather broad ligament 10 mm. long, to the abdominal wall on either side a 
few millimeters above and anterior to the symphysis pubis. A long filamentous 
ligament likewise passes from the attached end of each testis to the posterior 
region of the adrenal body of each side. The testes are somewhat sunken into 
perineal sacs, but still wholly internal. The spermatic cords pass ventro- 
medially and the vasa deferentia unite at the base of the bladder. The pros- 
trate glands are small, oval, and united medially on the ventral side just caudad 
of this point, much as in Centetes. No trace of Cowper’s glands could be dis- 
covered though their presence may have been overlooked. The penis is retrac- 
tile and is carried forward along the abdominal wall to about 2 em. from the anus. 
As stated by Dobson, this is an important difference in comparison with the 
condition found in the Centetinae and Potamogalinae in which the penis is 
retractile within the cloaca. The testes, too, in the Centetinae, are found much 
farther forward. 
The ovaries (Plate 9, fig. 8) in the adult female examined are small bodies 
about 3 mm. in length, dark brown in color. They are mainly suspended by 
the ovarian ligament, a thick filament extending along the anterior edge of each 
broad ligament of the uterus. The Fallopian tubes are short and convoluted, 
and pass at once into the cornua which are each about 15 mm. long. The pos- 
terior position of the ovaries is again different from that found in the Centetidae 
in which they are close to the kidneys. The uterus is very long and narrow 
measuring about 40 mm. in length. It is suspended by the usual two ligaments: 
the broad or ligamentum latum from the body wall to the cornua, and the round 
or ligamentum rotundum, that bounds the posterior free edge of a fold of the 
broad ligament, between which and the body wall there is thus formed a shallow 
diverticulum. The round ligament is inserted just caudad to the cornu of each 
side, and passes to the body wall about midway on the anterior edge of the pubis. 
The genital organs of the Cuban Solenodon appear to resemble in essential points, 
those of the San Domingo species. 
BRAIN. 
The brain of Solenodon has been hitherto unknown. This organ was 
removed from one of the specimens and though somewhat softened, it showed a 
number of interesting conditions (Plate 6, figs. 8, 9). Its general outline is 
much like that of the brain of Centetes as figured by Leche (:07, p. 102), with 
