No. 497] NOTES AND LITERATURE 355 



in September, in October Mr. Clark substituted the name stella 

 for tenuis as the latter is preoccupied. Now are we to under- 

 stand that Mr. Clark has concluded his three names refer to a 

 single species? If so the description of tenuis and ciliota as dis- 

 tinct species was, to say the least, hasty. Again, under Comp- 

 sometra, we find the following hit of evidence of haste in prepa- 

 ration : certain characters ' ' distinguish this species at once. The 

 two species at present known are, " etc. Evidently the first "spe- 

 cies" should read "genus." Under Isometra, Mr. Clark says 

 that the name < /nillnnj( rl which he bestowed on an Antedon in 

 1907 is a synonym because it was given "before its relation to 

 umjuxtipinna was detected." Under Pentametrocrinus attention 

 is called to an important morphological feature of certain species 

 of Eudiocrinus, which "seems to have escaped the notice of all 

 subsequent workers," and yet Mr. Clark himself published, less 

 than a year ago, quite a paper on Eudiocrinus, with description 

 of a new species and an annotated list of all previously known 

 ones. Finally, in concluding his paper, Mr. Clark says, "The 

 genera of free crinoids belonging to the Comatulida may be 

 grouped as follows," and he then gives eight families with their 

 various genera. But we fail to find the Atelecrinidae or the 

 genus Atelecrinus mentioned, and we can only guess whether the 

 genus is considered synonymous with one of those given (which 

 hardly seems possible) or is omitted through carelessness. Now 

 while it is true that none of these slips is serious. Mr. Clark has 

 not hesitated to criticize other writers for very similar blunders, 

 and their presence in his work necessarily affects our estimate of 

 its reliability. It is of the greatest importance, if the mantle of 

 Carpenter is to rest becomingly on his shoulders, that in his 

 future work, Mr. Clark reveal a greater patience, a more con- 

 trolled enthusiasm and a more painstaking care in the prepa- 

 ration of his results for publication. 



H. L. C. 



ANIMAL BEHAVIOR. 

 Recent Work on the Behavior of Higher Animals.— The members 

 of the genus Mus — the rats and mice — seem in a fair way to 

 become the classic animals for comparative psychology, as the 

 frog has long been for physiology. The work of the Harvard 

 school, examined in our last review, dealt largely with these ani- 

 mals. The recent work of the Chicago laboratory is concen- 

 trated even more precisely on the white rat. 



