iSi 



mentioned is a little smaller. Balss does not describe them and in his figure 16 only the spine 

 on the posterior margin of the 5 th somite has been drawn. In the larger specimen the telson 

 is a little shorter than the 6 th somite, in the other both have the sa me length; it is armed with 

 8 pairs of small marginal spines, that slightly increase in length posteriörly and the foremost 

 of which is placed at the anterior third and at the level of the antenor spine one observes 

 moreover a submedian pair of spines. In the younger specimen the telson is nearly as long as 

 the exopodite of the tailfan, in the other it is a little shorter. 



The 3 rd article of the antennular peduncle is armed above with a spine. The antennal 

 scale measures two-thirds the length of the carapace and is 2,4 mm. long, in both specimens. 

 The legs of the 3 rd and 4 th pair are of the same length and show the same measurements, in 

 both legs the carpus (in the younger specimen) is 1,1 6 mm. long, the propodus 1,6 mm., almost 

 one and a half as long as the carpus, the slightly curved and unarmed dactylus 0,44 mm., 

 little more than one-fourth the length of the propodus; the carpus of the 5 th leg is 1,3 mm. 

 long, the propodus 1,66 mm., the dactylus 0,44 mm., so that in these legs the propodus is 

 hardly one-third longer than the carpus. 



The two specimens from Stat. 7 are a trifle larger than the preceding, their carapace 

 being just 4 mm. long. In these specimens, which for the rest agree with those from Stat. 164, 

 one observes on the posterior half of the 3 rd tergum, at either side of the mid-dorsal line and 

 close to it, a short longitudinal groove or impression ; the two grooves do not extend to the 

 posterior margin, but, converging backward, unite together, so that that part of the upper 

 surface which is limited by them, looks like a shield, with sharp lateral margins and acute 

 posterior extremity. In the specimens from Stat. 164 the two grooves are still hardly discernible. 



General distribution: Sagami Bay, Dzushi, Enoshima (Japan) (Balss). 



ChlorotOCUS A. M.-Edw. 



The genus Chlorotocus, established by A. Milne-Edwards in the "Rapport sur les travaux 

 de la Commission pour la faune sous-marine. Paris, 1882, p. 18", on a species obtained July 27, 

 1 88 1 , by the "Travailleur" in the Gulf of Gascony and named by him gracilipes, but which 

 species, as was pointed out by Senna in 1904, is identical with Pandalus crassicornis from the 

 Gulf of Naples, described by A. Costa in 1871, contains at present four species and one variety. 

 Chlorotocus crassicornis (A. Costa) occurs throughout the whole Mediterranean (Cyclades, Sporades, 

 Ligurian Coast, Gulf of Naples), the Adriatic and the Gulf of Gascony ; it has, however, also 

 been observed off the coast of the Cape colony and of Natal, while a variety andamanensis 

 Anderson was taken by the "Investigator" in the Andaman Sea. Chlorot. incertus Bate is known 

 from the Agulhas Bank, off the Cape of Good Hope; a specimen from the Sagami Bay, 

 Japan, was referred by Dr. Balss with some doubt to the same form. The third species is the 

 remarkable Chlorot. spinicauda de Man, which represents the genus in the Indian Archipelago, 

 while the last is Chlorot. Xovae-Zeahuidiae (Borr.), which has been discovered a few years ago 

 by the british "Terra Nova" Expedition off the North Cape, New Zealand, and which was at 

 first wrongly referred to the genus Thalassocaris Stimps. 



