140 
« 52—61 Cercariae of Sch.m. from va- « 5 Liversection fiom guinea pig in- 
rious preparations.X120. cluding a transversal cut of fe- 
« 62 Living cercaria. The drawing is male Sch. M. 
combined from various. The figures show photographs taken from 
« 63 Stained section showing the twi- | stained preparations by J. PINTO, photogra- 
sted excretory ducts and the su- | pher of the institute. 
perior gland cells in oblique 
cut. 
Plate 43 (Figs. 1—4). 
Fig. 1 a—d Adult specimen of Planorbis 
Plate 41 (Figs. 64—70). y 3 
(Fig ) olivaceus. Shell in dorsal and ven- 
Fig. 64 Dicranocercaria ocellifera alive X60 tral aspect, in profil and in trans- 
« 65 Ditto stained (glycerinprepara- verse section; f adult specimen 
tion). 250. with upper half of shell remo- 
« 66 Ditto unstainedx250. ved, exposing the animal (com- 
« 67-68 Dicranocercaria  valdefissa. bined drawing), e section of a 
Unstained preparation 250. small and aberrant specimen. 
« 69 Section of skin from pig showing Nat. size. 
a penetrated Schistosomulum. « 2 Shell of adult Planorbis guade- 
Stained preparation. 600. loupensis, a dorsal, d ventral as- 
« 70 Intestinal loop ofinfected guinea pect, b transversal section, c na- 
pig showing mesenteric veins tural size. 
dilated and full of flukes. For- « 3 The same refering to Pl. centime- 
molfixation. Natural size. metralis. 
o a « 4 The same refering to Planorbis 
Bolssyl. 
« 1, 2 Sections of livers of infected In the plate the sections in horizontal 
snails. position show the mouth to the right. If we 
« 3 4 Sections of mesentery of infected | consider the shell sinistral, the ventral side 
guinea pig showing the flukes | was turned upwards and the dorsal down- 
in the veins in longitudinal and | wards. The section in vertical position show 
transversal cut. the mouth below. 
