34 W. LlLLJEBORG, 



The 1 st pair of truncal-feet are long and slender, longer than the 

 2" , and their hands have a very small and rudimentary (daw, concealed 

 by long bristles, on the baek border above the lower and back angle. The 

 hand of the 2 ml pair of truneal feet has the lower and baek corner drawn 

 out so as to be almost cheliform. The upper antennae are shorter than the 

 lower; the 3 ,a caudal-segment's lower and back corners are rounded off; 

 and the 7 th caudal-segment deeply cloven, &c. 



According to Bruzelius this species is to be met with on our we- 

 stern coasts from Bohuslan to Finmarken. 



5. Gen. AC1DOSTOMA. n. gen. *) 



Forma corporis et antennarnm rum genere Anonycis congruit, oiis 

 partes appendiculares tamen plane diversae. Labii rami laterales angusti. 

 Mandibulae processu accessorio, maxillae (rmi paris palpo, et palpus maanlli- 

 pedum ungue carentes, et hae partes oris conjunction acumen production prae- 

 bent. Pedes trunci l:mi parts rolatsti, manu prehensUL Pedes 2:di parts gra- 

 ciles, ungue carentes. 



Of this genus we know of only one species, namely: 



1. ACIDOSTOMA OBEgXJM (Spence Bate). 



Anonyx obesus, C. Spence Bate: Catalogue etc. pag. 74. 



„ „ C. Spence Bate & J. 0. Westwood: British Sissilc-Kycd 



Crustacea, T. I, p. l J8. 



Descr. Corporis forma (fig. 53) obesa, dorso latiusculo et rotundato. 

 epimeris magnis, et pedibus brevibus et robustis, unguibus parum arcuatis, 

 angulis posterioribus et inferioribus scgmeiiti 3:tii eaudai obtusis. Longitudo 

 circ. 5 millim. — Color ruber; oculi rotundati, fusci 



Caput parvuni, lobi laterales parum producti. Antenna siiperiores 

 (tig. 54) peduucoli segmentis 2:do et 3:tio brevibus. flagello articulis circ. 7 

 quorum primo brevissimo; flagelloqne appeudiculari longitudine flagello fere 

 sequali, articulis 5. — Antenna inferiores longitudine superioribua circ. 

 eeqnales, flagelli articulis 7. 



Labium (fig. f>5, a) vonicrit'ornu', et labii partes laterales she rami 

 angusti (b,b), ad apiceni aeuininati et intus hispidi. .Mandibuhe (fig. 56) elon- 



') From ilxi; a point and (fiti/tr month, because the mouth and its appendages 

 form a long projecting point. 



