NO. 2 HARTMAN, BARNARD: BENTHIC FAUNA OF DEEP BASINS 101 



Nothria stigmatis (Treadwell) 1922 



Onuphis stigmatis Treadwell, 1922, pp. 176-178, figs. 22-34. 

 Hartman, 1944, pp. 89-91, pi. 11, figs. 240-247. 



Specimens were collected from San Pedro Basin and Patton escarp- 

 ment. The species is more widely known from Washington in littoral 

 zones, south to western Mexico (Hartman, 1944, p. 91). The present 

 records (713 fms) include the deepest known occurrences. 



The species is characterized by having ventral cirri cirriform through 

 3 segments and thereafter padlike. Branchiae are first present at about 

 segment 15. Composite falcigers of anterior segments are distinctly tri- 

 dentate. 



Family LUMBRINERIDAE 



Ten species, 9 in a single genus, are recorded from basin depths. 

 These may be identified according to the following key. 



Key to species 



1. Some parapodia with palmately branched branchiae 



Nino'e gcinmea 



1. Without branched branchiae . 2 



2. Anterior parapodia with composite hooks .... 3 



2. Anterior parapodia lacking composite hooks . . . 7 



3. Posterior parapodia with 2 long lobes 4 



3. Posterior parapodia with a single prolonged lobe . . 5 



3. Posterior parapodia without prolonged lobes .... 

 Lumbrineris latrcilli 



4. Parapodial acicula yellow . . . Lumbrineris cruzensis 



4. Parapodial acicula black . . Lumbrineris calif orniensis 



5. Parapodial acicula yellow 6 



5. Parapodial acicula black .... Lumbrineris index 



6. Maxillae 3 and 4 each with several teeth 



\ . . Lumbrineris inflata 



6. Maxillae 3 and 4 each with single tooth 



Lumbrineris limicola 



7. With long, hairlike setae in some segments .... 8 



7. Without long, hairlike setae . . Lumbrineris tetraura 



8. Hooded hooks present from first parapodia 



Lumbrineris longensis 



8. Hooded hooks absent from first 20 segments .... 

 Lumbrineris moorci 



