88 



JOHAN KIÆR. 



English descriptions of the new and unknown species. 

 Ascidiella minuta, nov. sp. 

 (Fig. 42). 

 Length 6 mm. Breadth 5 mm. 



Body firmly attached on the whole of the left side, some 

 what compressed. 



Testa thin, bret not soft, covered with small processes 

 from the fast grown side of the testa outrunners go bey om 

 the underlayer. The artery ramification in the testa, ver 

 peculiar. From the skin nmscles a strong main artery goe 

 from the underside of the gut into the testa and directl; 

 divides into 4 branches that sligthly ramify, and end in 

 few, but large, elongated, inflated cucurbits in the sai 

 outrunners from 'the testa. No arteries are diffused upo: 

 the rigth side. The arteries are dark coloured and easy t 

 be seen by the naked eye. 



The inner body dark-coloured, brownish. The muscle 

 slightly developed. The orifice of the mouth is situated i 

 the mid line, whereas the sewer orifice is somewhat turne 

 over on the rigth side. The dorsal tubercle large, crescer 

 shaped, without rolled-in horns, the large opening tun 

 forward. The nerve ganglie close behind the dorsal tubercL 

 The branchial sack has very fine internal, longitudinal bar 

 which appear to have very small, bud-shaped processes on th 

 crossing point with the transverse arteries. In each mesh 

 broad spiracles. The dorsal fold sharply dentated. Tb 

 esophagus long and bent. The stomach large, and the gu 

 twist resembles that of A. aspersa, 0. F. M. The anus is low* 

 than the gut. The Kidney concrements large, in great quai 

 tity outside the gut. 



Ascidiella expansa, nov. sp. 



Length: about 27 mm. Breadth: about 20 mm. Bot 

 measures including the testa's expansion. 



