32 DE. BAIBD ON THE APHEODITACEA. 



Genus III. Panthalis, Kinberg, I. c. p. 386. 



Cephalic lobe tripartite on anterior margin ; central teetli of 

 jaws contiguous ; peduncles of eyes of tlie same length as that of 

 tentacle, and occupying the anterior portion of cephalic lobe. 

 Elytra 39 pairs ; the anterior flat, covering the back, inversely 

 imbricated; the remainder campanulate, imbricated posteriorly, 

 and leaving the middle of the back uncovered. 



Sp. 1. Panthalis Oeestedi, Kiiiberg, I. c. p. 387, and in Fregatten 

 Eugenics Besa, p. 25, tab. 6. figs. 34, 34a-34h, tab. 10. fig. 60. 

 Hab. West coast of Sweden, Kinherg. 



Sp. 2. Pakthalis gracilis, Kinberg, Fregatten Eugenies Besa, 

 p. 26, tab. 10. fig. 61. 

 Sab. Near Eio Janeiro, Kinberg. 



Genus IV. Poltodontes. 

 (Renieri) Blainville, art. Vers, Diet. Sc. Nat. torn. Ivii. p. 461. 

 Elytra very small, not covering the back, alternating with 

 dorsal cirri ; jaws large and horny ; no antennse ; no tentacle ; 

 palpi long ; eyes 2, peduncled. 



Sp. 1. POLTODONTES MAXILLOSUS. 



Phyllodoce maxillosa, Ranzani, Mem, Stor, Nat. Bologna, 1820, p. 1, 



tab. 1. figs. 2-9. 

 Sab. Adriatic Sea, Banzani. 



Sp. 2. PoLYODONTES gjjIjO, BUpp ell ; Grube, Arcliiv fiir Naturg. 

 1855, p. 90. 

 Sab. Eed Sea, Bilppell. 



Eamily Y. SIGALIONID^. 



(Sigalionina, Kinberg, I. c. p. 387.) 



Body long, narrow ; no facial tubercle ; cephalic lobe rounded. 



Eeet, in anterior segments, provided with either an elytron or a 



dorsal cirrus ; in posterior segments, feet provided with both 



elytra and dorsal cirri. 



Genus I. Sigalion. 



Sigalion, Audouin 8f Edwards, Hist. Nat. du Litt. de la France, ii. 



p. 3 (not Kinberg). 

 Sthenelais, Kinberg, I. c. p. 387. 



Cephalic lobe rounded, having on its mesial portion, which is 



