Vol. IX, No. 6.] The Blind Prawn of Galilee. 235 
[NV.8.] 
the antennary artery and passing outwards and a little for- 
wards to be attached to the pericardial wall on its ventro- 
lateral aspect. 
he origin and distribution of the main arteries in 7'yphlo- 
carts agree closely with that in Palaemon, with the following 
exceptions :— 
Typhlocaris. | Palaemon. 
| 
1. Ophthalmic Well doves Very poorly deve- 
artery. traced quite easily to loped; scarcely to be 
the base of the ocular traced beyond the 
| peduncles where it is stomach even in in- 
seen to divide into jected specimens. 
two branches. 
2. Antennary © Same in both. 
artery. 
3. Hepatic .. Arise from the lat- | Arise from the ex- 
arteries. eral aspect of the ven- treme anterior end o 
| tral surface at its the ventral surface 
‘posterior border. just behind the apex 
and closer to the mid- 
| : 
die line 
4. Dorsal... | Same in both. 
abdominal — 
artery. 
| 
e muscular strand, described as the gastro-cardiac 
muscle in Palaemon (3), is also present in T'yphlocaris, 
eproductive system. Male. The testis is quite differ- 
ent in shape from that of Palaemon. The two testis lie close 
to each other so as to form a single pentagonal mass lying on 
the dorsal surface of the liver and projecting forwards from 
beneath the heart. Anteriorly the mass seems to be connected 
with the dorsal renal sac (2) lying over the stomach. The vas 
emale. The ovaries, like the testes, are different in shape 
from those of Palaemon. They are placed close to each other 
80 as to form a flattened elongated triangular mass lying over 
the dorsal surface of the liver. The base of th y he 
front and is connected to a thin triangular membrane whic 
