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by the different form of the rostrum, the lower margin of which is convex, curving regularly 

 upward, while there are only two teeth on the upper margin, the 4"> tooth of the six being 

 situated above the frontal margin. In this species, as in So/, siphonocera, a groove runs along 

 the rostrum, but this groove does not exist in Sol. Melantho. The antennular peduncle reaches 

 almost to the apex of the scales, the thoracic legs finally are shorter, those of the 5* pair 

 reaching not beyond those of the i^' and the carpal joints of the 3''^ pair are as long as 

 their meri. 



f 17. Solenocera Faxoni de Man. 



J. G. DE Man, in: Notes from the Leyden Museum, Vol. XXIX, 1907, p. 136. 



Stat. 254. December 10. s°4o'S., 132° 26' E. Near the Kei Islands. 310 m. Fine, grey mud. 

 I female. 



Unfortunately this single specimen is much damaged: the antennal flagella, the external 

 maxillipeds and the thoracic legs are missing, while the caudal fan is much injured. 



The carapace, rostrum included, is 23 mm. long, without the rostrum 19 mm., the length 

 of the whole body probably 68 mm. Body glabrous, polished, except the rostrum the lateral 

 faces of which are tomentose and the telson that is somewhat pubescent. The carapace, rostrum 

 included, measures one-third the total length. Rostrum pointed, short, not yet reaching to the 

 tip of the eyes; its upper margin, that is slightly directed downward, is armed with 6 teeth, 

 that gradually decrease in size from the most posterior or first to the sixth; the three first 

 teeth are situated on the carapace, the i^' tooth, almost one and a half as far distant from 

 the cervical groove as from the 2°<i tooth, is more than twice as far distant from the 2°'i as 

 the 2°<i from the 3''^, and the distances between the following teeth also gradually become 

 shorter. The lower margin of the rostrum is convex in the middle. The rostral carina reaches 

 to the cervical groove, behind this groove the carapace is regularly rounded, without 

 any trace of a post-rostral crest or ridge. The distance (10 mm.) between the upper extremity 

 of the deep cervical groove and the orbital margin of the carapace is a little longer than 

 the distance (9 mm.) between the former and the posterior margin of the latter. The cervical 

 groove does not indent the rostral carina. No tooth at the orbital angle. Post-antennular 

 (antennal) spine small, without a buttress, the antennal groove therefore hardly defined ; behind 

 and above it one observes the somewhat larger post-orbital spine, which is a little larger than 

 the hepatic spine. That portion of the cervical groove that is situated between the hepatic 

 spine and the upper border of the carapace runs as in Sol. siphonocera, specimens of which 

 from the Gulf of Naples are lying before me. In this mediterranean species the subhepatic 

 groove i. e. that portion of the cervical groove which is situated below the hepatic spine, 

 ends abruptly at some distance behind the antero-inferior angle of the carapace, which is armed 

 with a small pterygostomian spine; the carina defining the subhepatic groove posteriorly turns 

 at an obtuse angle backward, without reaching the lower margin of the carapace. In Sol. 

 Faxoni, however, the antero-inferior angle is rounded, presenting no pterygostomian spine ; the 

 straight carina defining the subhepatic groove posteriorly terminates, in this species, i n a 



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