1904.] NATURAL SCIENCES OF PHILADELPHIA. 503 



Schmardanella califomica, figs. 36 and 37. 



Fig. 36. — A seta from somite XI. X 600. 



Fig. 37. — An uncinus from tlie same somite. X 600. 



Distylia rugosa, figs. 38 to 41. 



Fig. 38. — Slender seta from dorsal part of VI. X 250. 

 Fig. 39. — Broad seta from ventral part of VI. X 250. 

 Fig. 40. — Avicular uncinus from VI. X 250. 

 Fig. 41. — Pick-shaped uncinus from VI. X 440. 



Fig. 42. — Eunice biannulata. A spatulate and pectinate seta from a middle 

 parapodium. X 440. 



