324 Journal of Comparative Neurology. 



§241. IV, 21, Cms. — The fibrous mesencephalic masses 

 are mentioned ten times where the " stems " of the cerebellum 

 or olfactory bulbs are named once ; hence the greater need of a 

 brief mononymic designation for the first ; for the second and 

 third either the longer pcduncuhis or the addition of a qualifier 

 would prove less burdensome. 



IV, 29, Intercalatum. — This locative mononym was sug- 

 gested by Spitzka in 1887 ; W., '89, a, §103.^ 



V, 4, Sulci ccrebelli. — For most of the interfoliar crevices 

 I proposed rimiila in 1889. But, as shown by Stroud, certain 

 of them are deep and merit the title of S7ilats. For the minor 

 crevices riimila (or perhaps snlculus) may serve. 



V, 6, Vallis. — For the grounds of preference for the briefer 

 basal word (§30) over the longer diminutive, see W. and G., 



'89. 529, §75. 



V, 12, Folia \lingiilae\. — For the diminutive "leaflets" 

 on the lingula no special name seems to be needed, and if it 

 were, vincida alone would suffice. 



V, 22, Pileimi. — The substitution of this mononym for 

 hemisphaeri2im cerebelli was proposed by Dr. B. B. Stroud ('94); 

 on developmental grounds he recognizes a praepileum and post- 

 pileum. Stroud's " furcal sulcus " seems to be what is called 

 "preclival" in the last edition of Quain, III, Fig. 59. Other 

 features of the cerebellum described and figured by Stroud (the 

 ceshis and several sulci, central, culniiftal, hiberal, pyramidal, 

 uvidar and nodtdaj^ are not included in the present list. 



V, 37, Nidus avis. — The depression thus designated is so 

 seldom mentioned that the dionym is not burdensome. If C. 

 L. Herrick had not proposed nididus for micleus the former 

 might be an acceptable mononym for the little " nest." 



• In the German list, between mesencephaloti and their metencephalon (my 

 epencephalon) , are enumerated nine parts under the head, " Isthmus rhomben- 

 cephali." Their omission from the present table was accidental, and due to my 

 reversal of the original order of enumeration of the segments. I have already 

 expressed(§i97) my objection to the assignment of segmental value to this neck- 

 like region, and shall consider it hereafter (^250). Lemniscus is included in IV, 

 14 and 15. Brachiutn conjuncfivu»i {cerebelli] probably designates the praepe- 

 dunculus (V, 40). Velum rnedullare anterius '\% the valvula (IV, 31;). Y or gang- 

 lion interpedunculare I prefer ganglion intercrurale, and for Nucleus trochlearis , 

 Nidus trochlearis. 



