86 CAKL BOVALLIUS, AMPHIFOUA HYFEHIIDKA. I. 2. HYPERIID^. 



of the first two pairs of pcrnaopoda, as reprcseuted in tlic original corrcsponding dravvings, 

 th(jir identily, in niy opinion, is very problematicah 



SpENCii Bate and Westwood at the same occasion described anotlier new species, 

 wliich must be refen'ed to the genus Hyperoche viz: Hyperia prehensilis. 



In 1870 A. BoECK described Metoecus ahyssorum, afterwards called Tauria abyssoruiit, 

 and here below mentioned as Hyperoche abyssorum. The author of this treatise 

 proposed in 1887 the name Hyperoche Luetkeni') for the aiiimal more closely de- 

 scribed here below, p. 97. Stebbing in his Report on the Challenger Amphipoda gives 

 in 1888 a full description of a new species, for which he proposes the name Hy- 

 peroche cryptodactylus. Here below I describe a new species under the name Hy- 

 peroche picta. 



Thus the genus includes to-day seven species or eight, if Hyjjeroche tauriformis 

 may be a distinct species. 



A. The last thrce pairs of pera3opoda are distinctly longer than the two next 



preceding pairs _ _ 1. II, Kroeyeri. 



B. Tlie last tlirec pairs of per;\2opoda are not longer than the two next preced- 

 ing pairs. 



b 1. The anterior margin of the carpal process, and the hind margin of the 



metaearpus of the first two pairs of jjerBcopoda, are sniooth, not serratcd 3. II. preheiisilis. 

 b 3. Tlic anterior margin of the carpal process, and the hind margin of the 

 raetacarpus of the first two pairs of pcrajopoda are serrated. 

 bb 1. The lovver anterior corner of the metacarpus of the first and second 

 pairs of perreopoda is not produced. 

 bbb 1. The carpus of the third and fourth pairs of perajopoda 



is narrow, linear, almost twice as long as the tibia 3. H. abyssorum. 



bbb 3. Tlie carpus of the third and fourth pairs of perajopoda 



is somewhat dilated, only a little longer than the tibia. 



bbbb 1. The tibial process of the first pair of pera?o- 



poda is long, reaching nearly to the base of the 



carpal process. The dactylus of the second 



pair is not retractile 4. H. Luetkeni. 



' bbbb 2. The tibial process of the first pair of pera30- 



poda is long but not reaching to the base of 

 the cai'pal process. The dactylus of the second 



pair is retractile 5. H. cryptodactylus. 



bbbb 3. The tibial process of the first pair of perseo- 

 poda is very short. The dactylus of the se- 

 cond pair is not retractile G. H. Ulartinezii. 



bb 2. The lower anterior corner of the metacarpus of the first and second 

 pairs of perteopoda is produced into a broad curved, spoon-shaped 

 process ._.. 7. II. picta. 



') Throiigb a most uiihappy iiiadvertence from my owii part at the printing of my "Arotic and Antarctic 

 Hyperidsu the drawing of a woiild be new species was placed on plate 44, fig. 55 to 62, as representing Hy- 

 peroche abyssorum, A. Boeck; the diagnosis on page 564 is right and belongs to H. abyssorum. The animal 

 represented in the drawing is according to a thouronghly examination the male of Hyperoche Luetkeni, and 

 will be recorded here below, p. 99, under this name. 



