[453] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETc. 159 
Gattiola, sp., young; September 3; evening. 
Syllis (?), sp., young; September 3; evening. 
Rhynchobolus Americanus, young; September 3; evening. 
Nereis virens, adult males; April; day-time, (440.) 
N. limbata, adult males filled with milt, September 3, evening; Sep- 
tember 5, at Fire Island, day. Females, September 3, (few ;) young, 
common, August, September, evening, (440.) 
N. pelagica, young; August, September; evening. 
Nectonereis megalops; July 3, 11; September 3, 8; evening, (440.) 
Podarke obscura, adult; June 26 to August ; evening, (440.) 
Spio setosa, young; evening. 
Scolecolepis viridis, young ; evening. 
Polydora ciliatum, young; September 3; evening. 
Nicolea simplex, young; August, September; evening. 
Amphitrite ornata, young; evening. 
Lepreea rubra, young; evening. 
Polycirrus eximius, young; August, September; evening. 
Spirorbis, sp., young; evening. 
Tomopteris, sp., young; evening. 
Sagitta elegans, adult; July 1, September 8; day-time, (440.) 
Sagitta, sp., adult and young; January 30 to May 5; day, (440.) 
Balanoglossus aurantiacus ; larvee in the “ tornaria” state, (351.) 
Meckelia ingens ; specimens up to ten inches long; evening, (349.) 
Pontonema marinum, adult; February ; day-time. 
Several other small Nematodes with the last. 
Slender round worm, up to six inches long; June 29, July 13; evening. 
Young of many other worms; undetermined. 
MOLLUSCA. 
Cephalopods. 
Ommastrephes illecebrosa, adult; July, August, (£41.) 
Loligo Pealii; June to September; young, July, August, (440.) 
L. pallida, adult ; October, November, (441.) 
Pteropods. 
Clione papilionacea, adult; April 13, April 30, (4J4.) 
Styliola vitrea, adult; September 8; day-time, (443.) 
Spirialis Gouldii, adult ; August; evening, (443.) 
Diacria trispinosa, (444.) 
Cavolina tridentata, (444.) 
Lamellibranchs. 
Teredo navalis, larve; May, June, (386.) 
Mytilus edulis, larve ; April, (308.) 
Ostrea Virginiana, larve ; June, July, (310.) 
Larvee of many other species, undetermined. 
