326 CARL BOVALLIUS, AMPHIPODA HYPElillDEA. I. 2. HYPERIIDiE. 



3. PHRONIMOPSIS SPINIFERA, C. CLAUS, 1871). 



PI. XIV, fig. 30—35. 



Dhigu. Caput segmentis tribus primis peraai brevius, duplo altius quara longius. Perievn inflatum; 

 segmenta duo ultima in dorso leviter producta. Pedes pevwi secundi paris pedibus primi 

 paris duplo fere longiores, pedes tertii paris longitudine asquantes. Femur pedum quinti 

 paris cai-po longius. Rami pedum uri leves; ramus externus intei-no multo brevior. Telson 

 obtuse triangulatum, decimam partem pedunculi pedum uri ultimi pai'is longitudine sequans. 



The head is shorter than the first three perasonal segments together, and is twice as deep 

 as long. The perceon is globularly inflated; the last two segments are dorsally feebly 

 produced in the median line. The second pair of perreopoda are almost twice as long as 

 the first, and about as long as the third. The femur of the fifth pair is longer than 

 the carpus. The rami of the uropoda have the margins smooth; the outer ramus is much 

 shorter than the inner. The telson is obtusely triangular, and about a tenth part as long 

 as the peduncle of the last pair of uropoda. 



Colour. Red. 



Length. 4 mm. 



Hal). The Northern temperate and tropical region of the Atlantic, Lat. 32° N., Long. 77° 

 45' W., taken by Captain G. C. Eckman; Lat. 17° 22' N., Long. 37° 23' W., taken by 

 the author; the Mediterranean, Messina (Claus). (D. M.; F. M.; S. M.; U. M.) 



Syil. 1879. Phronimopsis spinifer, C. CLAUS. — »Der Organismus der Phronimiden». 



Arb. Zool. lust, der Uiiiversitat 

 Wiun. Tom. 2, p. 64 (6), pi. 1, 

 fig. 1-3. 



» » » J. V. Garus. 1885. Prodroraus Faunae Mediterraueae. Vol. 



1, p. 424. 



» i) » C. Bovallius. 1887. »Systematical list of the Amphipoda 



Hyperiidea». Bih. t. K. Sv. Vet. 

 Ak. Hatidl. Bd. 11. N:o 16, 

 p. 23. 



» » » Th. Stebbing. 1888. "Report on the Amphipoda». Vov. 



of H. M. S. Challenger. Zoology. 

 Vol. 29, p. 1377. 



Phronimopsis spinifera is easily distinguished from its hitherto known congeners 

 by the deep head, the globularly inflated peraeon, the great length of the second pair of 

 perseopoda, and by the narrow and not hirsute uropoda. 



Claus did not give any separate specific diagnosis, but pointed out the following 

 distinctions as being of specific value: the spine-like processes of the peduncles in both 

 pairs of antenna?, and in the labrum, the angularly bent femora of the first two pairs of 



