BRATX. 49 



The testes of the male are oval glands about 9 by 6 mm. bound bj' a short 

 antl 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 eacli side. The testes are somewhat sunken into 

 perineal sacs, l)ut 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 cm. from the arms. 

 As stated by Dobson, this is an important difference in comparison with the 

 condition founil in the Centetinae and Potamogalinae in which the penis is 

 retractile within the cloaca. The testes, too, in the Centetinae, are found nmch 

 farther forward. 



The ovaries (Plate 9, fig. 8) in the adult female examined are small bodies 

 about 3 mm. in length, dark brown in coIcm'. 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 tlie 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 UAd 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 anteri<jr edge of the puliis. 

 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 



