No. 401.] MARINE BIOLOGY AT BEAUFORT. 351 
June, July ; Zoropneustes variegatus, June, July; Moira atro- 
pos, August; Mellita testudinata, early September. Holo- 
thurians: Thyone briareus; Leptosynapta girardii (sp.?), with 
apparently mature eggs, July; small synaptas abundant in 
night tow, August. 
Worms. — Annelids : Amphitrite ornata, June; Petaloproctus 
socialis; Notomastus sf.; Marphysa sanguinea; Diopatra cuprea; 
D. magna, egg mass containing larvæ, July ; Nereis limbata, Sep- 
tember; Hydroides dianthus, July ; Harmothoe aculeata; Axio- 
thea mucosa, June, July; Arabella opalina ; Loimia turgida ; 
Arenicola cristata, June to August; Sabella microphthalma ; 
Pectinaria gouldii; Sabellaria vulgaris, July ; Autolytus cor- 
nutus, August, September (in tow); Proceræa ornata; P. tardi- 
grada, early September (night tow); Rhyncobolus americanus ; 
Chetopterus pergamentaceus, June to August; Sthenalais 
picta. The interesting pelagic form, Amphinome pallasii 
(one of the Blake species), appeared in the harbor July 18; 
eggs and sperm were freely discharged. Other * worms": 
Bdelloura candida, June; Meckelia rosea (sp.?); Cerebratulus 
ingens; Sagitta sp., June to September; Thalassema mellita, 
June; Balanoglossus brooksii, B. kowalevskii (sp.?). Professor 
Andrews in 1885 discovered the presence of the interesting 
form Phoronis (P. architecta Andr.). Actinotrocha larvz are 
common in the tow during summer. 
Mollusca. — In Stimpson's list (oc. cit., 1860) 174 mollusks 
are recorded. Coues and Yarrow (/oc. cit.) again list most of 
these and record a few others. Osborn (doc. cit.) records still 
others. The following may be mentioned : 
Lamellibranchs: Venus rugosa (sp.2) June, the burrowing 
form Lithodomus lithophagus, Cytherea gigantea, Dosinia dis- 
cus, Moctra solidissima, Tagelus gibbus, T. divisus, Modiola 
plicatula, Pholas sp. (small species found in rotten wood ; shells 
of P. costata common), Solenomya velum, Anomia glabra, Arca 
transversa, A. ponderosa, A. pexata, Cyclas dentata, Cardium 
magnum, Pecten dislocatus, Donax fossor, Tellina alternata, 
Ostrea virginiana, Xylotria fimbriata (and other shipworms) 
August, Pinna semi-nuda, Lima sp. Venus mercenaria, Rocel- 
laria stimpsont. 
