Septkmber 18, 1903.] 



SCIENCE. 



363 



the sudden drop in both temperature and 

 specific gravity of ocean water on July 27. 

 Up to this time the average surface tem- 

 perature at Coronado pier, taken at ten 

 "clock in the morning, had been about 

 20° C. On that date at the same hour of 

 the day it was 16.2° C. This low tem- 

 perature continued about three days, when 

 the previous conditions were gradually re- 

 sumed. The specific gravity fell distinctly 

 though slightly with the temperature. 

 These unusual temperature and density 

 conditions were not associated with any 

 special increase or change in direction of 

 the wind or fall in atmospheric tempera- 

 ture, neither could they be with certainty 

 correlated with any known tide or current 

 movements. 



Professor Kofoid reports as follows on 

 the work done bj' him and ilr. Bovard on 

 the protozoa : 



Attention was confined almost wholly to 

 the forms taken in the silk net on or near 

 the 'bank' off Pt. Loma, and to a few 

 catches nearer shore and in the bay. The 

 plankton is verj' rich in the well-known 

 pelagic groups Peridinidie, Tintinnidaj and 

 Radiolaria. 



Of the Pcridinida 59 forms were found. 

 The list includes a number of varieties 

 known only from the Bay of Naples, from 

 Marseilles, the Red Sea and the Gulf of 

 Aden, and includes many if not all of the 

 well-known forms from the Atlantic and 

 Mediterranean. The entire list is reported 

 for the first time from this coast and most 

 of them for the fir-st time from the Pacific 

 Ocean. 



Of the Tintinnidce 30 forms were oli- 

 served, including several of unusual in- 

 terest and importance. All of the species 

 are listed for the first time from the Pa- 

 cific Ocean, and many of them were known 

 heretofore only from the Mediterranean, 

 the Red Sea and the Gulf of Siam. Many 



Arctic and Atlantic species were also in the 

 list. 



The II lid ill} aria, though not abundant as 

 to individuals, revealed a large number of 

 species of which only a small part have as 

 yet been carefully examined. Of the 33 

 studied a few are cosmopolites and most 

 of them rare, known hitherto only from a 

 single or at most a few specimens from 

 Clialhiigcr collections in the tropical At- 

 lantic and Pacific Oceans. One only was 

 i-eported from the North Atlantic 57° 

 N. latitude off Greenland, and others in 

 hauls from great depths in mid Atlantic 

 or Pacific, e. g., in 2,250 fathoms or more. 



Three pelagic Foraminifera which are 

 cosmopolitan in the plankton occurred in 

 the collections, and some bottom ooze cur- 

 sorily examined appears to be rich in other 

 forms which have not as yet been identified. 



There were also four other forms belong- 

 ing to other groups of protozoa, two ecto- 

 parasites on other pelagic organisms, one 

 endoparasite and one flagellate free swim- 

 ming in habit. 



The affinities of the local protozoan 

 fauna are to some extent with that of 

 tropical waters, though some apparently 

 northern forms appear in our lists. Ap- 

 parently the protozoan fauna of the Bay of 

 Naples, and perhaps that of the tropical 

 Atlantic and Pacific, are to be found 

 within a few hours' sail of San Diego. 



Dr. Torrey's intimate knowledge of the 

 actinozoa and hydroidea of the California 

 coast enabled him to make the best of the 

 little dredging and trawling and shore col- 

 lecting done, and his preliminary report 

 which follows, includes these as well as the 

 pelagic groups: 



The Coelenterata are represented in the 

 waters in the neighborhood of San Diego, 

 ftd., by at least 86 species, more than half 

 of which have not been found before in 

 this region. 



