i64 STALK-EYED CRUSTACEA 



with flattened tops, except at the external angle of the 

 forearm and upon the superior border of the hand, 

 where they are compressed and dentiform. There are 

 two- large fungiform tubercles upon the superior border 

 of the fourth joint of the walking feet ; there are two 

 smaller tubercles on the upper border of the foot. 



The abdomen of the male has seven joints. 



Range. — St. Thomas. 



i8. Lobopilumnus. 



Lobopihumuis .... A. Milne Edwards. 



The front is formed of two rounded lobes separated 

 from the internal orbital angles by a small notch. The 

 lobes are divided above by two small indistinct fissures ; 

 there is another fissure outside upon the inferior border. 

 The antero-lateral borders are cut into many teeth or 

 spines. There is a tubercular tooth upon the subhepatic 

 region. The basal joint of the external antennas is very 

 short, and scarcely reaches the frontal prolongation. 

 The fourth joint of the external maxillipedes, slightly 

 notched in front, is wider than long. The buccal cavity 

 is wide in front, and the endostome has a small crest 

 on each side. 



The abdomen of the male has seven distinct joints. 



Range. — East Coast of America. 



I. Lobopilumnus agassizii. 



Lobopilumnus agassizii . . A. Milne Edwards. 

 Piliininus agassizii . . . Stimpson. 



The carapace is covered with a short down ; it is 

 wide and very lobulated, especially in front. The grooves 



