REPORT ON THE CIRRIPEDIA. 
33 
IV. DARWIN’S “ TRUE OVARIA.” 
Darwin 1 observed in the Cirripedia two glandular masses resting on the upper edge of 
the stomach, and touching the coeca where such exist ; these were thought by Cuvier to be 
salivary glands. They are of an orange colour and form two parallel “ gut-formed ” masses. 
Darwin was not able to ascertain whether the two main ovarian ducts coming from the 
peduncle expanded to envelop these glandulse or what the precise connection was. He 
says “ the state of these two masses varied much ; sometimes they were hollow, with only 
their walls spotted with a few cellular little masses ; at other times they contained or 
rather were formed of more or less globular or finger-shaped aggregations of pulpy matter ; 
and lastly, the whole consisted of separate pointed little balls, each with a large inner cell, 
and this again with tw r o or three included granules. These so closely resembled in 
general appearance and size the ovigerms with their germinal vesicles and spots, which 
I have often seen at the first commencement of the formation of the ova in the ovarian 
tubes in the peduncle, that I cannot doubt that such is their nature. Hence I conclude 
that these two gut-formed masses are the true ovaria. I may add that several times I 
have seen in the two long unbranched ducts, connecting the true ovaria and the ovarian 
tubes in the peduncle, pellets of orange-coloured cellular matter (i.e., ovigerms) forming 
at short intervals little enlargements in the ducts, and apparently travelling into the 
peduncle.” 
In the second volume of Darwin’s Monograph , 2 the same opinion as to the nature of 
these glandular bodies was given for the sessile Cirripedia. This opinion, however, was 
not only opposed to that of Cuvier 3 but also to that of Martin-Saint-Ange and of Karsten. 
Martin- Saint- Ange 4 describes “ une espece d’appendice stomacal, un veritable prolongement 
renfle et bilobe, communiquant avec la premiere cavite de l’estomac par un pddicule etroit 
et fort court. La structure, la forme generale, la coloration et la disposition mamelonnde 
de la surface exterieure de cette partie sont tout a fait semblables & celle de l’estomac, 
et doivent citre regardees comme faisant partie du meme organe.” Martin-Saint-Ange, 
therefore, cannot be said to have considered these bodies as salivary glands, since he 
points out in his Memoir as well as in the explanation of the figures that these organs 
communicate with the stomach. So Darwin’s objection “ that salivary glands have not 
been positively recognised in any Crustacean ” cannot be considered of any consequence. 
Krohn , 5 describing the direction followed by the oviducts, says that they approach very 
1 Darwin, Lepadidse, 1851, p. 57. 
2 Balanidse, 1854, p. 100. 
3 Cuvier, Memoire sur les animaux des Anatifes, Mt'rri. Mus. Hist. Nat., t. ii., 1815. 
4 Martin-Saint-Ange, Memoire sur l’organisation des Cirripedes, M 4m. Inst. Savans. Hit rang., t. vi., 1835. 
5 Krohn, Ueber d. Cement- und Zeugungsapparat d. Cirripedien, Wiegmann’s Archiv, t. xxv., 1859. 
(ZOOL, CHALL, EXP, — FAItT XXVIII, — 1884.) Ee 5 
