Nephasoma (Nephasoma) bulbosum (Southern, 1913)  

(From Southern, 1913)

The original description of this species was based on observations of 8 specimens collected in the same haul with fifty specimens of Phascolosoma muricaudatum (= Golfingia muricaudata). The bulbous character of the anterior portion of the trunk is due to unequal expansion, and thus is not a specific character. On the other hand the filiform nature of the posterior part of the trunk is shown in all the specimens and it is probably the normal condition.