176 Polychcetous Annelids Collected at Friday Harbor, 



amount toward the middle line. The halves are united for almost their entire length. 

 In the maxilla (fig. 11) the carriers are rounded basally but narrowed at about their 

 middle. The forceps are rather slender and only faintly curved. The right proximal 

 plate has 5 teeth, the left 4, the second pair each has 2, the third pair each has 1. 

 All parts of the maxilla are jet-black and there are collections of black pigment in the 

 chitin outside of the plates which are not shown in the figure. There are two pairs 

 of anal cirri (fig. 13) approximately equal in size, the dorsal a little closer together 

 than the ventral. 



Lumbrinereis cervicalis, new species. 



Individuals of this species are rather small as compared with others of this genus, 

 the average size being 80 mm. in length and 1 mm. prostomial width. They are easily 

 recognized in life by a noticeable dark-brown band crossing the dorsal surface of the 

 first two somites (fig. 14) and by the yellowish body-color. Visible under a lens are 

 minute brownish lines running longitudinally along the dorsal surface of the prosto- 

 mium. These are variable in size and color. 



The prostomium in living animals is rounded and usually a little broader than long, 

 though in preserved material the postero-anterior diameter may be the longer. The 

 first two somites (fig. 14) show dorsally the pigment band, which does not extend on 

 to the ventral surface (fig. 15). Throughout most of the body is a prominent brown 

 spot just ventral to the parapodium in each somite, and other pigment spots are 

 scattered irregularly over the dorsal surface. There are 4 equal-sized, short anal cirri. 



The parapodium has the form characterisitc of this species (fig. 16 is drawn from 

 the tenth), and there are no noticeable differences in form, except that the posterior 

 ones are more slender. In the anterior parapodia are both simple and compound 

 setae. The dorsalmost are simple, each long, curved, and fine-pointed, with a wing 

 along its convex margin (fig. 17). Toward tlie ventral surface are others of similar 

 form, but shorter and less noticeably curved. The compound setie (fig. 18) lie in the 

 middle of the tuft. The terminal joint has a number of minute teeth at the apex, 

 which is covered with a hood. A continuation of this hood extends for a short distance 

 down the basal portion, but at the joint between the basal and apical portions is a 

 slight constriction, as if the hood were divided into two parts. Behind about the 

 fortieth parapodium both these forms of setce disappear and their place is taken by a 

 second form of simple seta resembling the compound ones of anterior somites if the 

 two parts of these had fused (fig. 19). The stalk is long and the apex has a number of 

 minute teeth, covered by a hood which extends for a short distance down the shaft. 



The maxilla is small and is dark brown in color (fig. 20). The carriers are 

 sharp-pointed posteriorly and roughly triangular in form, with a notch in each on the 

 outer face near the anterior end. The forceps are slender and gently curved. The 

 right proximal plate has 5, the left 4 teeth, the second pair has 4 each, and the 

 terminal pair 2. There is more or less pigment in the chitin bordering these plates 

 which is not shoTVTi in the figure. The mandible (fig. 21) is uncolored, except for 

 dark pigment patches on the outer anterior margins. 



Collected first at Boat Bay and later in Newhall's lagoon at Friday Harbor. It 

 occurs also in hmited numbers in other localities in this vicinity. 



The tj'^pe is in the American Museum of Natural History. 



Onuphis stigmatis, new species. 



Collected in considerable numbers in False Bay, Friday Harbor, in sand exposed at 

 low tide. One specimen was in a tube of sand grains, but most seemed to be lying 

 loose. This was unexpected and it may be that I overlooked the other tubes, though 

 a special effort was made to find them. The single complete specimen of the animal 

 collected at this time was 80 mm. long, with a prostomial width of about 1.5 mm. 



In the living animal the basal joints of the tentacles show a very little pigmentation, 

 but the remainder of the tentacles, the palps, and the nuchal cirri are colorless. A 



