12 BOVALLIUS, SOME AJIPHIPODOUS GENERA. 



a little shorter tlian the second, of the same form. The meta- 

 carpus of the second pair ends with two long spines on the 

 sides of the dactylus, without any spoon-shaped process. Both 

 pairs are only a little shorter than the third pair. The fourth 

 pair are a little longer than the third, subequal to the fifth. 

 The sixth pair are a little shorter, equal to the seventh. The 

 peduncles of the first and third pairs of uropoda are very 

 broad, those of the second pair narrow, all the rami subequal, 

 distant from one another. 

 Hah. The Pacific. 



5. Paraphronima Edwardsii, n. sp. 



The head is deeper than long, longer than the three follow- 

 ing segments. The first pereional segment is longer than 

 the second; the fourth is longer than the first and second to- 

 gether, the seventh is longer than the fourth. The pleon is 

 as long as the three preceding pereional segments. The first 

 pair of pereiopoda are much shorter than the second, the carpus 

 longer than broad, the infero-anterior corner truncated, the meta- 

 carpus stout, longer than the carpus. The metacarpus of the se- 

 cond pair of pereiopoda ends in a short imperfectly spoon- 

 shaped process. The third and fourth pairs are nearly twice 

 as long as the second, a little shorter than the fifth and sixth. 

 The seventh pair are a little longer than half the sixth. The 

 first pleonal segment is longer than the seventh pereional seg- 

 ment. The peduncles of the pleopoda are shorter than the 

 rami. The peduncles of the first pair of pleopoda are nearly 

 twice as long as those of the third pair. The first pair of 

 uropoda are as long as the second. 



Hah. The Atlantic. 



Tyro. H. Milne-Edwards. 



In his excellent Natural history of the Crustacea ^) Milne- 

 Edwaeds proposes the generic name Tyro for a small Hyperid, 

 already mentioned by him ten years earlier -), though without 



') 1. c. pag. 80. 



^) »Extr. des. rech pour servir ä THist. nat. des Orust, amphip.s Pag. 387. 



