134 Natural History Bulletin. 



a portion of the test of a JMclalia was picked up near Bird 

 Key. 



The corals were of course tlie best represented group of 

 Coelenterates. We were told that most of the branching- 

 forms had been killed a few \ears previous to our visit, 

 probably by unusually low tides. The following reef-build- 

 ing forms were collected : 



Sldcrastrcen galaxea Ell. and Soland., JMaiiiciua arcohUa 

 \Jvcm., IsophyUia dipsaccaY):im., Diploria ccrcbyijoruiis Lamk.. 

 Afea>idn'iia clivosa Verrill, jMcandn'iia siunosa Lesr.. Porilcs 

 astrcroides Lamk., Pon'/cs fnrcata Lamk.. Poritcs rhiian'a 

 Lamk., A^an'c/'a (ig'aric/ta Pall., OrhiccUa annular ii Dana.. 

 Oatlinu varicosa Lesueur, Of these, the two species of 

 branching Pon'/cs were by far the most abundant, growing- 

 inside the reefs and fairly covering considerable areas of the 

 bottom. Only one specimen of JMadrcpora ccrvicoruis Lamk. 

 was found, although we were told that they were formerly 

 very abundant. 



JMillcpora alciconiis Lamk. was the onl_v hvdroid, if it be 

 a hydroid, found at this station, a fact that surprised us 

 greatly. Of course we did no dredging in deep water, and 

 thus were unable to investigate the fauna outside of the reefs. 



Only two species of Medusa" were found, — Linergrs nier- 

 nirins Hreck. and PoIycJonia frondoia Agassiz, the latter 

 being very abundant in the old moat, where it rests on the 

 sandy bottom with its tentacles turned upward. In spots 

 they are closely packed together, and the waving, leaf-like 

 tentacles give them a semblance to a thick growth of alga'. 

 PJiysalia arethiisa Agassiz is the onh' Siphonophore found by 

 us at this station. It was abundant, and as before indicated, 

 is almost always accompanied by a little group of parasitic 

 fishes. 



On Tuesday, June 13th, the boats were sent for the turtle 

 skeletons which the land-crabs had cleaned for us on Bird 

 Key, and the corals which had been put to bleach on Bush 

 Key. A strong wind was blowing, but abated somewhat in the 

 afternoon, and the '-Emily E.Johnson" left the fumigating 



