220 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXV 



in T. pupa and T. forbesii and other species, are so covered by these 

 structures that they are hidden. 



Parapodia and setse present no distinctive features. No setae 

 were detected on the last five segments. Notopodial cirri (branchiae) 

 begin on III and are present on all but about the last six somites 

 and on most segments have a length of nearly or quite one-fourth 

 of the body diameter at that point, but become reduced before 

 disappearing at the caudal end. 



This species belongs to Dindyrneme Kinl^erg (Dindymenides 

 Chamberlin) if that genus be recognized. 



Stations 4304, off Point Loma Lighthouse, 25 fathoms, coarse 

 yellow sand; 4479, off Santa Cruz Lighthouse, 33-45 fathoms, 

 hard sand, (type) ; 4549, off Point Pinos Lighthouse, 56-57 fathoms, 

 coarse sand, shells and rock. 



Travisia brevis sp. uov. 



The five known specimens of this species are all small, measuring 

 from 11 to 21 mm. long and 3.5 to 4 mm. in diameter, and all 

 have 29 segments. 



Prostomium and peristomium together form a bell-shaped head, 

 of which the former represents the handle, being a short blunt 

 cone, thickly covered, like the rest of the body, with pustules. 

 Peristomium uniannulate and in the neural field produced caudad 

 and cutting II to the mouth. Somite II slightly longer than I and 

 obscurely divided into two rings, of which the caudal bears the 

 setae and between them a sensory pit. Mouth a small opening 

 surrounded by radiating furrows between II and III. 



Somite III obscurely triannular above, the posterior annulus 

 being well differentiated but the furrow between the first and second 

 very shallow. Somites IV to XVI or XVII are triannulate, the 

 equal rings being very distinct dorsally and ventrally but indis- 

 tinguishable laterally in the parapodial areas. At about XIII these 

 parapodial areas begin to increase and encroach upon the inter- 

 annular furrows which become correspondingly reduced both 

 above and below and finally restricted to the dorsal and ventral 

 fields, the segments also becoming correspondingly smaller. By 

 XX the segments have become practically uniannular, the third 

 ring being suppressed and the first reduced to short crescentic 

 dorsal and ventral inserts. In this region the parapodia have 

 shifted to the ventral surface which consequently appears angulated. 

 At XXVI the diameter is abruptly reduced, the remaining four 

 somites forming a tube which terminates in the slightly enlarged 

 rosette-like pygidium marked by twelves radial furrows into ridges 

 ending in as many short perianal papillae. 



Parapodia from III to XXVI inclusive, biramous. On anterior 

 segments they are very short and being retractile into pits, the 



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