4 Carl Bovallius, 



The niaxillipeds, coalesced at tlie base, cany strong foiu'-jointed palps. 



The antennce are fixed on tiie under-side of the head. The second pair are 



like those of the Ganmiarids. 

 The seventh pair of pereiopoda are not transformed. 

 The uropoda arc like those of the Ganmiarids. 

 The telsoii is cleft to the middle. 



The animals belonging to this family resemble the true Gammarids 

 in more points than those of the two following families do and are very 

 interesting as connecting links. Dana') placed tliom among the Hype- 

 rids as the third subfamily of the family Hyperidaj; S pence Bate^) 

 removed them from this family and ranged them as the first subfamily 

 of the family Oxycephalida3. Claus mentions the genus 1871^) as belon- 

 ging to the Gammarids. Kossmann'') regarded them as Hyperids and 

 described some particulars of their morphology, overlooked by Dana. 

 Other authors have totally omitted the animals, which seem to be very 

 rare and easily passed over, being very small and, as is has been men- 

 tioned above, very similar in general habitus to Gammarids. 



Genus 1. Syiiopia. DANA, 1852. 



Syn. 1852. Synopia. DANA. 



1862. 



1880. 



United States Exploring Expedition Cru- 

 stacea, vol. 2, p, 994. Folio. *■. 



Spence Bate. Catalogue of the specimens of Ampliipod- 

 ous Crustacea in the colleclion of the 

 British Museum, p. 341. 



R. KossMANN. Zoologische Ergebnissc einer ini Auftrage 

 der k. Academic dcr Wissenschaften zu 

 Berlin ausgefiihrlcn Reise in die Kiistcn- 

 gebiete des Rothen Meeres. Malacostraca. 

 p. 137. Leipzig. 4:to. 



1) United States Exploring Expedition. Crustacea, vol. 2, p. 981. 



2) Catalogue of the specimens of Amphipodous Crustacea in the collection of 

 the British Museum, p. 341. 



3) "Untersuchungen iiber den Ban und die Verwandtschaft der Hyperi(icn», in 

 Nachrichten von der Konigl. Gesellschaft dcr Wissenschaften und der (i. A. UuiversitJii zu 

 Gottingen, 1871, N:o 5. p. 157. 



4) Zoologische Ergebnisse einer im Auftrage der koniglichen Academic der Wissen- 

 schaften zu Berlin ausgefiihrten Beise in flie Kiistengebiete des Ifotticii Meeres. Mala- 

 costraca. p. 137. 



