210 S- GOTO. 



Habitat — Mouth-cavity of Smaris vuhjaris (on the caudal segment 

 of a Cijmolhoa). '^ 



Localitif — -Gulf of Naples. Collected by Dr. Max v. Brunn. 

 Date — N(jt recorded. 



2. Dididophora dongata, n. sp. 

 (PI. X, figs. 9-10 ; PI. XI, fig. 8 ; PI. XII, figs. 1-2.) 

 Boili/ lanceolate, anteriorly rather pointed, about 8 mm. long, the 

 pedicel of the hindmost pair of suckers inclusive, divisible only 

 into two parts, the l)ody proper and the caudal disc, the latter being 

 only about one-sixth tlie total length, and bearing on its margin the 

 long pedicels of the circular posterior sadicrs ; pedicels making 

 equal angles with each other, and each containing in its ])roximal 

 half a branch of the intestine and a portion of the vitellarium sur- 

 rounding the farmer. Oe.wpluKjus very short. 'J'he two intedinal 

 trunks sending out not very long lateral branches outwards, and con- 

 nected with each other by cross-commissures, which unite with each 

 other by means of secondary commissures ; the trunks continued into 

 each other at the posterior end of the b(xl3^, thus forming here a 

 lo(^p. From the loop are sent out at regular intervals eight, somewhat 

 long lateral branches, each of which penetrates into the pedicel of tlie 

 sucker as above mentioned. Common (jenital opening close behind the 

 termination oî the oesophagus. Venis with eight hooks. Orarij 

 occupying the posterior end of the middle third of the body, long, 

 cylindrical, l)ent on itself once at its middle and the whole again 

 bent on itself at its miihlle, so that the ovary has the form of a 

 double A'^ one placed within the other ; with the angle of the V 



1). On this head Prof. Ijiin.a remarks ; " Ich glaube jedoch, dass sie nicht als Parasit 

 jenes Schmarotzer-Krebses, sondern vielmehr als derjenige des, den letzteren beherbergenden 

 Fisches anzusehen ist " (MS). 



