5-29 



Stgllochus ellipticus , a turbellarian, ranked 42% overall, and 

 was consistently present at all stations in low numbers (Tables 5-4, 5- 

 5) . This motile species preys mainly on barnacles (Osman, 1977) . Its 

 presence on short-term panels was observed from June through October 

 (Figure 5-3) . Osman (1977) noted settlement from late June through 

 October in the Woods Hole region. 



Crepidula fornicata and C. plana, slipper shells, showed 

 percent occurrences of 38% and 36% respectively and occurred at all 

 stations for most years (Tables 5-4, 5-5) . C. plana was consistently 

 found on short-term panels in July and August (Figure 5-3) . 



Electra crustulenta , an ectoproct, showed an overall percent 

 occurrence of 30% with presence at all stations for most years (Table 5- 

 5) . Occurrence on short-term panels was noted from August through 

 October (Figure 5-3). Hoagland et al . (1977) noted fall settlement of 

 this species in a New Jersey estuary. 



Sabella microphthalma , a. tiibe-dwelling polychaete, had a 

 percent occurrence of 23% overall in the assemblage (Table 5-5) . Osman 

 (1977) noted that this species was able to extend its tube linearly and 

 keep the open feeding end ahead of overgrowing species. He suggested 

 that overgrowth of other taxa against the base of their tubes may add an 

 additional layer of protection. Settlement was observed from July 

 through October in New Haven Harbor. Osman (1977) noted settlement from 

 July through August at Woods Hole (Figure 5-3) . 



Metridium senile, an anemone, had a 20% occurrence overall and 

 was most common at Fort Hale and Harbor Station (Table 5-5) . Its up- 

 right growth pattern, allows it to feed and spawn above the majority of 

 other settling species, enabling it to exist on crowded panels (Osman, 

 1977) . 



Molgula citrina and Molgula spp. showed 19% and 11% occurrence 

 overall respectively with most consistent occurrence at Harbor Station 



