EXPLANATION To PLATE XXVII. 



FIG. 1. St'i-ln/in-i'/lii null/nil Nulling. Two liY<lrotlii'i-,-i- (much less rnlai^vd than other fijjimv). 



L'. ,sv -liiilni -I/In (nniiiixii 1'Vwkcs. Ilranch (ivci't;niwu with parasitic cam panularian ( rnlan:.^! ). 



:;. ,V. ,-lnliiri //'i j'-iniinxii. Part of Alhnan's type nf Si-rluhii-iit inli'i/rilln'rii Allinaii I cnlarwd ). 



4. K-i-liiliiu-l/'i jiiriuiHui. I'urt of sti'in \\ ith L'MiiaiiL'ia ( cular^i-il ). 



5. Si'rliil<ii-i'//<i liiii-llitii/ii Xuttilifr. 1'art of ste'iu, i-howini; lirauch ori^in^ ( rnlargi'il ). 



