VI 136 Carl Zimmer. 



besetzt, die an der Basis viel kleiner sind und dichter stehen als am Ende. Die 

 Länge beträgt etwa 17 mm. Die Farbe ist gelblich, außerdem sind zwei verästelte 

 Pigmentfiecken auf dem letzten Abdominalsegmente vorhanden. 



Verbreitung: Die Art ist von der norwegisclieii, britischen inui fran- 

 zösischen Küste, aus dem Mitteimeere und dem sciiwarzen Meere bekannt. 



Gattung Bathymysis Tattersall. 

 1007. Batliymysis W. M. Tattersall, Ann. nat. liist. ser. 7, v. 19, p. 116. 



„Carapace evcnly roundcd in front, without aiiy trace of rostral projection. 



Eyes set close together, apparently without definite eyestaiks, somewhat 

 flattened and subquadrangular in shape; visual Clements imperfectiy developed and 

 unpigmented in preserved spccimens. 



Antennal scale shortly laiiceolate in shape, setose all round. 



Mouth-organs and first and second thoracic limbs as described by Sars for 

 the genus Le|3tomysis, except tliat the terminal Joint of tlie palp of the second 

 maxilla is expandcd at its apex and arnied witii numerous short stout spines, the 

 whole appendage being generally as figured by Sars for Schistomysis Spiritus. 



Tarsus of the remaining thoracic limbs four-jointed; nail long and slender. 



Telson fairly long; very deeply cleft, the cleft serrated; lateral margins armed 

 throughout their iength witii S]3ines. 



Inner inopod with a row of spines all along its inner margin. 



Pleopods in tiie male exactiy as for the genus Leptomysis." (I. c.) 



83. Bathymysis helgae Tattersall. 

 1902. Bathymysis lielgae W. M. Tattersall, Ann. nat. iiist. ser. 7, v. 19, p. 1 16—118. 



„Carapace covering all tiie tlioracic Segments; evenly rounded in front and 

 at the antero-lateral corners; without trace of rostral projection. 



Pleon longer than the carapace; the first segment equal in Iength to the 

 fifth and sliglitly longer than tiie subequal second, third, and fourth Segments; 

 sixth one and a half times as long as the fifth. 



Eyes strongly recalling those of Amblyops, rather small, somewhat flattened 

 and subquadrangular in shape, not reaching to the distal end of the first Joint of 

 the antennular pcduncle; apparently without definite peduncles; set very close 

 together; visual Clements imperfectiy developed and witliout pigment in preser- 

 ved specimens. 



Antennular peduncle a little shorter than the telson, moderately stout, third 

 Joint equal in Iength to the basal two combined; male appendage well developed 

 and densely hirsute. 



Antennual pcduncle a little shorter than the antennular, slender, the second 

 Joint one and a half times as long as the third. 



