1893.] :\rrrRr)sropTrAL journal. 225 



with thirty phiteson which 282 species were lif^ured and named. 

 In 1.S82, Butscldi added considerably to the number of known 

 Radiohiria from liarbadoes both by fif^ures and descriptions. 

 And, finally, in 1887, Ilaeckel in his famous Challen^'cr Report, 

 V^'ol. XVIII, brought the entire literature of the Kadiolaria up 

 to the year 1884, including a description of all the Radiolaria 

 that have ever been found in the Barbadoes dcjtosit.* 



Meanwhile what have we been doing in this department as 

 regards the Barbadoes deposit? Nothing, absolutely nothing. 

 Not only have we failed to add a single species to those described 

 by naturalists abroad, but we have not even availed ourselves 

 of the results of work of these investigators in order to make a 

 study of these forms oa ourownaccount. Instead, we have con- 

 tented ourselves with a peep now and then at a slide of Poly- 

 cystina viewed as an opaque object through a half-inch. Here 

 is a magnificent deposit, with nearly 200 geuera of the most 

 wonderful and beautiful forms, about which tlie microscopist 

 in this country is profoundly ignorant. Are the Germans and 

 the English to do all our work for us, and we Americans never 

 to lend a hand or even show any appreciation of their labors ? 

 Is it not about time that some of our younger men at least, 

 who have not become absorbed in any special subject, should 

 turn their attention to this, seeing that the material is at com- 

 mand and the deposit lies right at our own door? 



But, one may say that the work of Haeckel is costly and in- 

 accessible to the ordinary student. Well, so it is, and it is also 

 very voluminous, including all the living as well as the fossil 

 forms and the whole immense material of the Challenger expe- 

 dition, and that is why I determined to try to reduce theclasifi- 

 cation to the simplest possible form, taking only so much as was 

 nece.ssary to distinguish these genera of Barbadoes, and making 

 it as easy as possible for the student, in order that he may have 

 a concise guide to the study of these forms so far as the genera 

 are concerned. 



My first attempt, while tolerably correct, as far as it went, will 

 no longer suffice, as the number of thegenera jtroves to be much 

 greater than I had supposed when I wrote it. It only dealt 

 with the 42 genera of Ehrenberg, whereas, I i)ropose now to 

 give the cla.ssification of the 191 genera as described by Haeckel, 

 ~* See Challenger Report, Vol. 18, Preface aiul Intnxluction. 



