2 86 The Ohio Naturalist [Vol. II, No. 8, 



his expert opinion and valuable suggestions. Prof. Cockerell says, 

 " It appears to be a perfectly good species," and adds, " There is 

 a Phe7iacocciis plataiiiow Platanus in Europe. This differs from 

 3'our insect as follows: (i) It (female) is larger ; nearly 4mm. 

 long. (2) It has a donsal band. (3) It has the second antennal 

 joint longer than the third (which is also the case in P. Iuiia)if/ii, 

 P, soloiopsis, P. 7viiiua{tae, etc. 



" P/ic7iacocais piceae has X.\\& ss.\\\Q size as your species, but it 

 also has the long second joint ; its color is orange or pink, and 

 the male is pink or flesh color, with the apodema and scutellum 

 red. It lives on Abies in Austria." 



SOME ADDITIONS AND CORRECTIONS TO THE LIST OF LAND 

 AND FRESH WATER MOLLUSCA OF TUSCARAWAS CO., OHIO.* 



Dr. V. Sterki. 



After 53 add : Conulus chersinus Gld. Common. It seems 

 to be distinct from fulvus. 



64 is Limnaea kirtlandiana Lea, near reflexa Say. 



After 66 add : Limnaea umbilicata Ad. Pools and ditches, 

 scarce. 



67 is Limnaea caperata Say. It is ver}- common in Summit 

 and Portage Counties. 



82 and 86 are good species, according to Walker, but are not 

 3'et published. 



88 Physa gyrina Say is regarded as a distinct species by lead- 

 ing conchologists ; 89 may be a small local form of it. 



After 88 add : Physa elliptica Lea, according to Walker. 

 Pools and ditches ; not common. 



90 is Physa integra Say. 



91 may be glabra DeKay ; equals elongatina Lewis. So writes 

 Mr. Bryant Walker, who is examining it. 



92a. Campeloma rufa Hald. Not common ; ditches. A 

 rather elevated form. 



105 to 145. Since the list was written, C. T. Simpson's Syn- 

 op.sis of the Naiades (Unionidae) has been publi.shed. In this a 

 number of additional genera are recognized, and some specific 

 names changed. It would take too much space here to enumer- 

 ate the changes in detail ; the species in the list in themselves 

 are correct except 143 and 144, which are mere forms of Anodonta 

 grand is. 



After 146 add : Sphaerium solidulum Pr. Tuscarawas River 

 and races. 



•■'Eighth Annual Rcp( rt of the Ohio State Academy of Science, p. "o. 



