FOULING OF SHIPS' BOTTOMS 



199 



many of the growths either were dead, and all their soft parts entirely gone, or they 

 were but recently dead and in a putrid condition when the ship was docked and the 

 collections made. 



LIST OF THE SPECIES OF ORGANISMS COLLECTED FROM SHIPS' BOTTOMS 



Animals: 



Phylum ARTHROPODA — 



Class CIRRIPEDIA (barnacles)- 

 Balanus improvisus. 

 B. eburneus. 

 B. amphitrite. 

 B. tintinabulum. 

 B. crenatus. 

 B. harmeri. 

 B. tulipiformis. 



B. perforatus. 

 Balanus sp.? 



. Chthamalus fragilis. 

 Lepas anatifera. 

 L. anserifera. 

 L. hillii. 



Conchoderma aurita. 



C. virgatum. 

 Paecilasma crassa. 



Phylum MOLLUSCA— 



Class PELECOPODA— 



Mytilis edulis. 



M. hamatus. 



Mya sp.? 



Ostrea elongata. 



Anomea ephippium. 



Anomea sp.? 

 Class GASTEROPODA— 



Crepidula fornicata. 



Nudibranchiata sp.? 

 Phvlum COELENTERATA— 



" Class HYDROZOA (hydroids)— 



Eudendrium ramosum. 



Eudendrium sp.? 



Tubularia crocea. 



T. couthouyi. 



Tubularia sp.? 



Campanularia amphora. 



C. portium. 



C. vorticellata. 



Campanularia sp.? 



Bougainvillia carolinensis. 



Obelia commissuralis. 



O. gelatinosa. 



Obelia sp.? 



Perigonimus jonsii. 



Podocorvne sp.? 

 Class ANTHOZOA — 



Metridium sp.? 



Segartia lucise. 



Astrangia sp.? 

 Phylum PROTOZOA— 

 Class INFUSORIA— 



Vorticellidse. 



Folhculina sp. ? 



Animals — Continued. 



Phylum BRYOZOA— 



Class ECTOPROCTA— 

 Bugula turrita. 

 Bowerbankia caudata. 

 B. gracilis. 

 Anguinella palmeta. 

 Alcyonidium mytili. 



A. gelatinosum. 

 Membranipora monostachys. 

 M. lacroixii. 



M. liniata. 



Membranipora sp.? 



Lepralia pertusa. 



Crissia sp.? 

 Phylum ANNELIDA (worms) — 

 Class POLYCH^TA— 



Hydroides hexagonis. 



Hydroides sp.? 



Nereis pelagica. 



Glycera sp.? 

 Phylum CHORDATA— 



Class TUNICATA (sea squirts)— 



Molgula manhattensis. n 



M. arenata. 



Botryllus arenata. 



B. schlosseri. 

 B. nigrum. 

 Ciona intestinalis. 



Plants: 



Division ALGA — 



Class CYANOPHYCE^E— 

 Oscillatoria lsetevirens. 

 Class CHLOROPHYCE^E— 

 Cladophora sp.? 

 Enteromorpha intestinalis. 

 E. torta. 



E. chaetomorphoides. 



E. marginahs. 



Enteromorpha sp.? 



Ulothrix flaca. 



Ulva lactuca. 



Vaucheria sp.? 



Acrochajtium sp.? 

 Class PHiEOPHYCE^S— 



Ectocarpus sp.? 



Fucus sp.? 

 Class RHODOPHYCE.E— 



Polysiphonia nigrescens. 



P. violacea. 



Polysiphonia sp.? 



In the foregoing list are given the organisms collected from ships' bottoms and 

 identified as far as the condition of the material would permit. By referring to this 

 list it will be seen that 48 species of animals have been found, in addition to 13 types 

 that could be classified only as to genera; while all of the plants found were algae, of 

 which 16 kinds were recognized. 



