204 46 



into the somewhat longer, almost cylindrical, gray thorn-stomach (Fig. 4 d) (comp. 1. c. 

 PI. VIII, Fig. 9). This stomach had a length of 3 mm by a diameter of OS™*; it showed 

 the common series of thorns, in all apparently about 20, in the series about 60 — 70 thorns 

 seemed to occur. The thorns were dirtily yellow brown, of a height of up to - 40 mm , by 

 a diameter at the base of up to O'OS"™; they were cylindric, a little thicker at the base, 

 straight or somewhat bent, with truncate point, often with rough surfaces, otherwise as 

 shown before (comp. I.e. p. 40. PI. VIII, Fig. 10 — 11). This stomach passes into a thin- 

 walled bag, along one side of which a strong fold is found; most likely this bag is a 

 third stomach which continues with a narrowing into the short intestine. — The 

 scarce contents of the alimentary cavity were an indeterminable animal mass, in which 

 were found small Copepoda, cnidæ, and loose stomach-thorns. 



The relations of the dirtily- and dark gray liver which showed many lobules on 

 the surface, deviated very much from that which I have seen in the specimen of this 

 species before examined, in which absolutely no liver-branches were given oil' to the 

 papillæ (comp. I.e. p. 41. Taf. VIII, Fig. 9) 1 ). In the jbinder part of the first stomach two 

 liver-branches opened as usual, and the principal liver almost medianly. The anterior 

 liver-branches (Fig. 4bb) are very strong at the base, and continue in a process, first 

 rather thick, then thread-like thin, rising into the second papilla; from the right branch 

 issued one more similar process, stretching along the body-wall in the vicinity. The 

 principal liver-branch (fig. 4c) has a length of 2"2 cm by a diameter of up to 3"™, its 

 surface is rather rough. This principal liver provided the third and fourth pairs of papillæ 

 with liver-branches. These latter were then tapering from the base , and at the passing 

 into the papillæ almost filiform; they rose undivided to the place of furcation above the 

 gill; the branches were thick- walled at the base, then they became thinner, and at last 

 they only showed a quite thin layer of hepatic cells. 



The heart, the renal syrinx, and the urinal chamber were as before described. 



The yellow hermaphrodite gland which covered the anterior half of the prin- 

 cipal liver, had a length of lO™ 11 , by a breadth of 3™™, and was formed of 10 larger lobes. 

 The anterior genital mass had a length of T™ 111 , the full half of which was formed by 

 the penis. The short-bag-shaped penis was 4 mm high; when opened it showed quite the 

 same structure as in the specimen examined before (comp. I.e. p. 42. PI. VII, Fig. 18 — 19), 

 the two festoons set with hooks passing into each other above and below. The thorns 

 mostly placed in one series, were dark chestnut, only at the point a little bent, reaching 

 to a height of O'OS™ 11 (fig. 5), otherwise as before described. The mucous-albuminous 

 gland was yellowish and whitish, the seminal vesicle pyriform. 



') This reminds of the variability of the liver-branches in Dendronotus. 



