ON SOME OIGOPSID CUTTLE FISHES. 
79 
two well-developed renal papillae (PI. VIII, fig. 4), which pa- 
pillae are continued and expand beneath the wall of the renal 
chamber (PI. VIII, fig. 5). 
At the side of the gills, coming up behind them, are the ovi- 
ducts without terminal oviducal glands. These glands are 
halfway up the duct (PI. VIII, figs. 6 and 7), and below the 
glands the oviduct shows an annular marking and narrows 
down to a small opening into the coelom (PI. VIII, fig. 7). As 
I mentioned before, Brock (2) asserts that the right oviduct is 
absent in Chiroteuthis V eranyi, which I find, in this speci- 
men at least, is not the case. Chiroteuthis does not, therefore, 
differ from the general Oigopsid type in this character. 
Far back in the body are two nidimental glands (PI. VIII, 
fig. 4), the existence of which is denied by Brock (2). They 
are narrow and long, but show distinctly the structure of a 
nidimental gland (PI. VIII, fig. 8). 
On opening the renal chamber we find it to be a single one, 
like that figured by Vigelius 1 (7) for Ommastrephes, and which 
Grobben 2 (8) takes to be typical for Oigopsida. There is no 
true dorsal renal chamber, but a more anteriorly situated di- 
vision of the single chamber (fig. 7). 
The vena cava passes down the right side of the ink-sac, 
and divides close to its entrance into the renal chamber into 
two renal veins, which receive two branches from the mantle. 
Two distinct viscero-pericardial apertures lead from the 
renal chamber to the coelom (PI. VIII, figs. 5, 6 and 7). The 
pericardial portion of the coelom contains the heart, which is 
large and broad, especially in the ventricular part. The pos- 
terior portion of the coelom contains the stomach, which 
reaches far back, the caecum and the ovary. 
The branchial hearts lie in diverticula of the coelom. The 
ovary partly overlies the stomach and is attached at two points 
anteriorly to the stomach and posteriorly to the wall of the 
coelom, as Brock has laid down for all Oigopsida 3 (9) (fig. 7). 
1 W. T. Vigelius, ‘ Niederlandisches Arcliiv fiir Zoologie,’ 1880. 
- C. Grobben, ‘ Arbeiten des zool. Instituts zu Wien,’ 1884. 
3 Brock, ‘ Zeitsclirift fiir wissenscliaftliche Zoologie,’ 1882. 
