The appendicular muscles of Necturus maculosus. 385 



as the author could express his ideas in no better way: „Die zur 

 Versorgung der Hand (des Vorderfusses der Tiere) und des Fusses 

 (des Hinterfusses der Tiere) bestimmten Arterien zeigen bekanntlich 

 eine charakteristische Anordnung insofern, als sowohl an der dor- 

 salen, wie volaren (plantaren) Seite des Metacarpus und Metatarsus 

 entsprechend den Interstitiell zwischen den einzelnen Metacarpal- 

 (bezw. Metatarsal-) Knochen Arterien herablaufeii. die sich dann an 

 den Metacarpo- (bezw. Metatarso-) Phalangealgelenken oder in deren 

 Nähe je in zwei für die einander zugekehrten Flächen zweier be- 

 nachbarter Finger (Zehen) bestimmte Aeste teilen." 



Of course one must be very sure of homologies before attemp- 

 ting to reform the nomenclature upon that basis, and thus our only 

 hope of relief is through anatomical investigation, collecting and 

 recording all the available facts upon which a scienti fic nomenclature 

 rnay be founded. Among such the myology of all types of Urodeles 

 would appear to be of first importance, as presenting conditions 

 the most primitive of any now available. 



The muscles treated in this paper include both those of the 

 girdles and the free limbs, and are as follows: 



A. Muscles between the trunk (or heacl) and the shoulder-girdle. 



1. Dorso-lateral aspect 



Latissimus dorsi (Id) 

 Dorsalis scapulae (ds) 

 Omohyoideus (eh) 

 Trapezius (t) 



Levator anguli scapulae (7s) 

 Serratus anterior (sa) 



2. Ventral aspect. 



Pectoralis (p) 



B. Muscles between the shoulder-girdle and the free limb. 



Supracoracoideus (sc) 



Procoracohumeralis (jph) 



Rectus superficialis hypobranchialis posterior (rlip) 



Anconeus (= Triceps) 



Anconeus scapularis (ac) 



Anconeus lmmeralis lateralis (ald) 



Anconeus lmmeralis medialis (ahm) 



Anconeus coracoideus (ac) 



Zool. Jahrb., Suppl. XV (Festschrift für J. W. Spengel Bd. II i. 25 



