JS^etr F'ossils from Jlissotiri. — RovJey. 217 
perienced founders of the law of priority, and for the above 
given reasons I have adopted the name Tlerjietorrfiiiis. The 
question, however, is one of minor importance so long as we 
understand the true facts of structure and affinity. Without 
further argument, therefore, I suggest the following revised 
diagnosis of 
Hei'pefori'luna nodosa riuti : 
Cirri (known as yet only in regions 5 and 6) irregular, alternating, at 
intervals of 1 to 4 ossicles: cirrus-ossicles moniliform, increasing in 
thickness distalwards to the middle of the cii-rus, thence diminishing to 
the end. (Longitudinal sutures as yet unknown.) Distal end of the 
stem may form a bulb-like swelling, marked off by a slight constriction. 
This diagnosis is congruent with those given in the ''C'rin- 
oidea of Gotland," where all the terms here used are ex- 
plained. 
The bulb-like end is of interest, and confirms the view ex- 
pressed in the following sentence:* "The attachment of the 
stem has not been seen in this genus. * * * * It is very 
probable that the animals usually broke olf any rooted at- 
tachment they may haive formed, and that they clung to corals 
or other submarine objects by their cirri. In some specimens 
the stem narrows at the distal end (i)late II, figure 56) ; and 
this suggests that the creatures may have had some power of 
locomotion, such as might have been etfected by successive 
contractions and extensions of the stem." 
I have ventured to submit these remarks for publication in 
the American Geologist, thinking that to be the surest means 
of attracting the attention of American students to these 
curious animals, about which, in spite of the investigations of 
many skilled observers, we have still so much to learn. 
JSriti.sh Jliiseinn [Xaf. ///.v/. ), hoixlon^ S. W., EiKihi ml. 
DESCRIPTION OF A NEW GENUS AND FIVE NEW 
SPECIES OF FOSSILS FROM THE DEVONIAN 
AND SUB-CARBONIFEROUS ROCKS 
OF MISSOURI. 
By B. R. Row Li;v, Louisiana, Mo. 
ARISTOCRINUS. gen. nov. 
Etymology, aristos. best: Icrhton, lily. 
Fig. 1. Generic diagram. Fig. 2. Aristocrinnfi concarus, natural size. 
Diagnosis. — Calyx forms a low cup and together with the 
short, thick arms has comparatively little hight. Basal region 
*Crin. Gotland, p. 45. 
