334 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



The 2 anterior thoracic segments are provided with slender, hairlike 

 setae. The 4 parathoracic segments have spatulate paleae, the first with 

 3, the second with 4, the third and fourth segments each with 5 on a side. 

 Figs. 30, 32, on pi. 31, show an outer opercular palea from near the 

 ventral end of the series and a parathoracic palea from the fourth seg- 

 ment. This specimen agrees fully with the description of Lygdamis asteri- 

 formis (Augener). 



The national collections contain a lot from the south coast of Oahu 

 Island, Albatross station 3909, from 308-322 fms, in which there are 

 numerous smaller specimens and tube fragments. On the whole, they 

 agree well with the type from Puerto Rico, except that the outer opercu- 

 lar paleae are somewhat different. They agree in that there are also about 

 25 pairs of paleae that are fiat, spatulate, but they terminate distally in 

 a blunt point (pi. 31, fig. 31) giving the operculum a slightly different 

 aspect. The inner row contains also only 3 or 4 pairs of much shorter, 

 thicker, spinelike setae. Figs. 31 and 32 on pi. 31 show an opercular 

 palea from near the ventral end of the outer series and a thoracic palea 

 from the fourth paleal-bearing segment. 



Lygdamis asteriforinis (Augener) was originally described from the 

 Barbados Island, in 103 fms. Augener (1906, p. 170) surmised the 

 identity of this with Hermella varianSj since he says, "Es ist moglich, dass 

 die vorliegende Art mit der Sabellaria varians von Porto Rico zusammen- 

 fallt, welche ahnliche Paleen zu haben scheint und ebenfalls zwei grosse 

 Mundcirren besitzt." But he adds, "nach der ungeniigenden Beschreibung 

 dieser Art ist es nicht moglich, die Sabellaria asteriformis mit ihr zu 

 identificieren." Examination of the type, however, substantiates their 

 identity. Augener concludes, "Da der Name S. varians schon von Webster 

 fiir eine neue Sabellaria mit 3 Paleenkreisen, welche offenbar nicht mit 

 der Treadwell'schen Art zusammenfallt, gebraucht wurde, muss ausser- 

 dem S. varians von Porto Rico mit einem anderen Namen bedacht 

 werden." I follow this conclusion. 



Distribution. — Puerto Rico; Barbados Island, in 103 fms; Hawaii, 

 in 308-322 fms. 



Lygdamis philippinensis (Treadwell) 



Monorchos philippinensis Treadwell, 1926, pp. 191-193, figs. 13-20. 



Material examined. — Type collection in the U.S. Nat. Mus. (no. 

 19207). 



The type and 5 other specimens in the collection originate from the 

 Philippines, in 805 fms, and were collected by the steamer Albatross. The 



