LeodicidoB from Fiji and Samoa. 141 



ventral acicula with sharply hooked apex, which comes to the surface near the setse tuft. 

 The single dorsal acicula is straight and bluntly rounded at the end. Dorsally in the 

 parapodiura drawn are 3 pectinate setae with very long shafts and a tuft of simple 

 setae with very much curved stalks. Ventrally is a single compound seta of the usual 

 type. The posterior parapodia retain the long dorsal cirrus found in the anterior 

 somites and apparently do not differ essentially from the fiftieth. As the animal was 

 allowed to remain in its tube, the posterior end was not well preserved, and it is difficult 

 to be certain about the details of the last parapodia. 



There are two pairs of anal cirri (plate 3, fig. 2), the dorsal pair much longer than 

 the other. 



Leodice tuhicola has the three kinds of setae characteristic of this genus, but differs 

 from the majority in that there are two kinds of compound setae. In the anterior 

 somites both sorts appear. One (text-fig. 17) has a terminal joint shaped like a knife- 

 blade, with perfectly smooth edges; the other (text-fig. 18) has the bidentate terminal 

 joint which is more characteristic of Leodice. As stated above, the number of these 

 setae is so small in any somite that accidental loss might easily remove all of any one 

 kind, and thus the result of accident be interpreted as absence, so that I have not 

 attempted to study their distribution or to determine how far posteriorly the first 

 kind of compound setae extend. They are certainly absent on the fiftieth parapodium. 



The simple setae (text-fig. 19) are long and in the posterior somites are much more 

 curved than in the anterior, but in other respects they are similar tliroughout the body. 

 Each widens toward the end and tapers to a sharp point with a wing along one margin. 

 The pectinate (text-fig. 20) have about 12 rather prominent teeth. In posterior som- 

 ites their shafts are much longer than in the anterior. 



The aciculae from anterior somites (text-fig. 23) are shghtly curved at the end, 

 bluntly rounded. In posterior somites there are two kinds of aciculae. The dorsal 

 ones (text-fig. 21) are straight, with rounded ends, the ventral ones much larger (text- 

 fig. 22), their apices bidentate, the subterminal tooth in each being especially large 

 and sharp. The apex of each of this last form is covered by a hood. The position 

 assumed by the ventral acicula is unusual in that instead of lying at an angle with the 

 dorsal one the two are parallel, the ventral one coming to the surface near the middle 

 of the setal lobe (plate 3, fig. 4). 



The maxilla is light brown, with apices of forceps and toothed margins of plates 

 darker. There is a dark-brown band at the junction between the carrier and each half 

 of the forceps; along the line of junction between the two halves of the carrier and at the 

 base of the carrier, which is prolonged into two dark-colored tooth-like processes 

 (plate 3, fig. 5). The proximal plate on either side has 3 teeth, the right distal paired 

 has 8, the left distal paired has 2, the unpaired has 8. Distal to each series of paired 

 plates is a patch of pigment and a thin plate with a recurved corner. The mandible 

 was broken in removing and only one half is drawn. This (plate 3, fig. 6) has a small 

 beveled surface not very sharply marked off from the shaft and carries at one side a 

 horn-like protrusion. The shaft is noticeably marked with concentric lines. 



Crossland (1904, pp. 303-310, plate 21, figs. 1 to 8, text-figs. 52-55) described 

 Eunice {Leodice) tubifex from Zanzibar, which is similar to L. tuhicola in character of 

 tube and in the possession of two kinds of compound setae. While Crossland does not 

 give measurements, this species was evidently much larger than L. tuhicola and differs 

 from it in nearly every respect. With these larger specimens of Eunice {Leodice) 

 tubifex, Crossland collected some smaller individuals which he regards as the young of 

 the same species. These he says were about one-third the size of the full-grown ones, 

 one of "head" and 50 somites measuring 35 mm. in length; another of "head" and 35 

 somites was 13 mm. long. 



While these are larger than my single specimen of L. tuhicola, they agree with it so 

 closely in the character of jaws and setae (the only characters Crossland gives) that 

 I regard them as belonging to the same species, and either my L. tuhicola is a young 



