148 On the Mollusca of Long Island. 



Five species, Cheinnitzia seminuda, C. Msuturalis, Ifytilus 

 corrugatus, 3L Icevigaius, and Zeda sapotilla, have not before, 

 BO far as I am aware, been found south of Cape Cod. Four 

 species, a Ccecuvn, a Rissoa, a Shenea, and an jEoUs^ besides 

 most of the Tunicata, appear to be undescribed. Thirty-five 



species, Loligo illecebrosa, JEolis , Chemnitzia jproducta^ 



C. Msuturalis, Yermetus radicida, Cmcum pulchellum, Coecum 



, Shenea, , Hissoa , Exdima sid)angulata, Cohimhella 



Gouldiana, Scalarialineata, S. clat/irus, Cerithiopsis Emersonii, 

 Cer. terebellum, Cerithium nigrocinctum, G. Greenii, Pleurotoma 

 cerinum, Natica pusilla (Say, nan Gould), Anomia aculeata^ 

 Mytilus decussatus, M. corrugatus, M. loevigatus, Nucula 

 proxima, Leda limatula, L. sapotilla, TelUna tenia, Solecurtus 

 hidens, Solemya horealis, Cyjprina Islandica, Cardita horealis^ 

 Astarte mactracea, Montacuta hidentata, Cumingia tellinoides, 

 and Thracia Conradi, are either not mentioned at all, or only 

 doubtfully, by Dekay, as New York species. Col. Goiddiana, 

 Solemya horealis, and Thracia Conradi, may still be considered 

 doubtful, as only worn specimens or fragments were obtained. 



Five species, Astarte castanea, Cyjprina Islandica, Mesodesma 

 arctatum, Purpura lapillus, and Buccinum undatum, were 

 found about Montank Pt, but not in the Bays. A closer 

 examination and the use of the dredge around Montauk Pt. 

 would probably very largely increase the list of species belong- 

 ing to the eastern extremity of Long Island. 



With this brief summary, and premising that my dredging 

 researches have been almost entirely confined to the immediate 

 neighborhood of Greenport, at the junction of the two bays, I 

 commence a short account of the species found, with notes on 

 the animals of some of them. 



Cephalopoda. 



1. Loligo illecebrosa Lesueur. Very abundant and large. In 

 some specimens the pen is nearly a foot long. The spawn 



