No. 471] ANATOMY OF ACMJEA TESTUDIXAfJS 



177 



the pressure on the viscera entailed by the coiit 

 hgis been done away with either by removal c 

 slitting it lengthwise and thus opoiiing tiu' viscci 

 Sections were prepared by imbed. lin^^ iii pai 

 usually with htemaluni and t-osin or wiili Kan 

 and niethvlen blue, and were mounted in xylol 

 onstration of mucus Mayer's mucicarniine wa 

 tions of material killed in 5% sublimate solut 

 was demonstrated by bathing the fresh membra 

 in a mixture composed of four j)arts saturate.l 

 methylen blue and 90 parts ^f^' ><>luni>n. 



mens thus prepared were mount(>d in -l\cei 

 ammonium picrate and have kept well tnr x.n 



For macerations, good results ha\e been obt 

 fluid (cf. Lee's Vfuierrurum, 4th ed., p. ; 

 (Bernard, '90, p. 101). 



Total preparations showing the innerxation 

 like the mantle or the gill were mo.>t >ue.-e-lul 

 methylen blue and mounted in glycerine >urc 

 nium picrate. Such ]>reparations are fairly \n 



Habits 



Here should be intercalated the article on ih 

 already mentioned. To the fact.> there stated 

 that I have occasionally foim.l in the nuchal c; 

 collected at Eastport tiny shells. measurni>i 

 diameter which have been iilentifi(^il for mr 

 Johnson of Boston as in all probability the \ n 

 toidca Gould. Whether tlie.e are c )iii;neii>al> ^ 

 visitants I am not prepared m -a\. 



The literature dealinu' wiih thi> ->c(ii.m i> 

 list at the close of the pres.-nt article. 'V\\r 

 that fertilization is internal was i)ubli>hed not 



