CvinoCds, Bias to ids <<n<l Bi'achiopods. — Rowley. 303 
to its final loss right through the history <>f a long line of in- 
dividuals." They also say "the various characters that go t<> 
the formation of an individual or a race, at any period of it- 
development, may themselves differ greatly from one another 
in the degree of their own development," and further, "for 
the designation of the successive stages in the history of a 
character, the ontogenic terms might be used with the addi- 
tion of the prefix niorpho-, e. //., morphobrephic (here nepi- 
onic), 'morphephebic." These suggestions are useful, but 
they appear to me to cover both ontogeny and phylogeny. while 
according to the title used by these gentlemen, "Stages of in- 
dividual Morphogenesis,'' they were meant to apply only to 
ontogeny. 
If one traces the history of any one character, something 
which every student of bioplastology must habitually do in 
actual practice, throughout a chain of individuals, whether 
these are members of one variety or of one species, or whether 
they lead into distinct species, as they are apt to do, he is 
studying the phylogeny of that characteristic. It would seem, 
therefore, that the prefix "phyl" would be applicable in such 
cases, whereas the use of a single term for both the phylum 
and the individual, especially the prefix "niorpho, " would be 
likely to be confusing. 
DESCRIPTION OF SOME NEW SPECIES OF CRI- 
NOIDS, BLASTOIDS AND BRACHIOPODS FROM 
THE DEVONIAN AND SUB-CARBONI FER- 
OUS ROCKS OF MISSOURI. 
By R. R. Rowley, Louisiana. Mo. 
(Plate XIV. I 
Dlclocriiius gregeri (now ep.). 
(Plate xiv, fig. 1. Side view of the body, natural size.) 
Body obconical. The fourbasals slightly excavated tor the 
reception of the column. The three smaller of these four 
plates, pentagonal; the fourth hexagonal. First radials, six 
to seven sided, large, about as wide as long. Second radials 
hexagonal, width and length about equal. Third radials or 
axillary plates heptagonal, width and lengl h equal, support ing 
