436 FLORENCE BUCHANAN. 



1877. — Panthalis bicolor, Grube. Congo. 



Two specimens differing greatly from one another, 

 described but not figured by Grube (9). 

 1878. — Panthalis melanotus^ Grube. Philippine Islands. 

 Panthalis nigromaculata, Grube. Philippine 

 Islands. 



Described but not very well figured by Grube 

 (10). 

 1885. — Eupompe australiensis, Mcintosh. Off Cape 

 York, Australia. 



Described and figured by the founder (14). 

 1887. — Euarche tubifex, Ehlers. Off Carysfort Reef, 

 West Indies. 



Described and figured by founder (7). 

 1887. — Eupompe indica, Beddard. Mergui Archipelago. 



Described and head figured by the founder (3). 

 The new species which may now be added to the list bears 

 most resemblance to the Polyodontes gulo described by 

 Grube (8), and it has, indeed, certain characters in common 

 with it in which they both differ from all the other known 

 species. Like P. gulo and no other member of the group 

 there are no long well-developed palps,^ and the eye peduncles 

 are lateral instead of being anterior, and fused with the sides 

 of the prostomium, thus giving the prostomium a very broad 

 appearance (figs. 1 and 3). The paired prostomial tentacles, 

 when present, in all other Acoetidae with pedunculate eyes, 

 arise from the ventral surface of the prostomium, or rather 

 from the base of the anteriorly placed eye-stalks, and just in 

 front of the palps (cf. fig. 10). Here and in P. gulo there 

 are two small tentacles springing from the anterior (and slightly 

 ventral) surface of the prostomium, which probably represent 

 them (figs. 1 and 2, L). Behind these (fig. 2) and springing 

 from the base of the laterally placed eye-stalks are two other 

 very minute tentacles, which probably represent the palps of 



1 Mcintosh does not mention the palps at all in his Eupanthalis, but I 

 conclude that he would have done so had they been greatly reduced in size 

 or absent, 



