NO. 19.] ECHINODERMS OF CONNECTICUT. 147 



Sladen, W. P. 1889. 



Report on the Asteroidea. Challenger Reports, Vols. xxx 

 and xxxi. 



A monograph of the starfishes of the world. 

 Theel, H. 1886. 



Report on the Holothurioidea. Challenger Reports, Vol. xiv. 



A monograph of the holothurians of the world. 

 von Uexkull, J. 1909. 



Umwelt und Innenwelt der Tiere. Berlin. 



A series of most interesting stories about the habits of rep- 

 resentatives of various groups of invertebrates, including 

 the classes of echinoderms, with an account of their 

 behavior under a great variety of natural and artificial 

 conditions. 

 Verrill, A. E., and Smith, S. I. 1874. 



Report on the Invertebrate Animals of Vineyard Sound and 

 Adjacent Waters. Report of Commissioner of Fish and 

 Fisheries, Vol. i, for 1871-2. Washington. 



The most comprehensive report on the marine invertebrates 

 of southern New England that has yet been published. 

 Although some new species have been discovered since 

 the work appeared, and the scientific names of some of the 

 species have been revised, it is still the standard work on 

 the subject. The accounts of the natural history of the 

 very numerous species included in the report are most 

 interestingly written. 

 Verrill, A. E. 1895. 



Distribution of the Echinoderms of Northeastern America. 

 Am. Journ. Sci., Vol. xlix. 



Discusses the geographical and bathymetrical distribution of 



the various species. 

 Verrill, A. E. 1899. 



North American Ophiuroidea. Trans. Conn. Acad., Vol. x. 



Revision of the synonymy and distribution of many of the 

 ophiurans of the east coast of North America and the 

 West Indies. 



