No. 3.] MUSCLES AND NERVES IN AMIA CALVA. 763 
130. VAN WIJHE, J. W. Ueber die Mesodermsegmente und die Ent- 
wickelung der Nerven des Selachierkopfes. Amsterdam, 1882. 
131. WiLson, Henry V. The Embryology of the Sea Bass (Serranus 
alvarius). Gov. Printing Office, Washington. 1891. 
132: WRIGHT, R. RAMSEY. On the Nervous System and Sense-Organs 
of Amiurus. Proc. of the Canad. Inst. Vol. ii, tasc. No. 3. 
Toronto, 1884. 
133. WRIGHT, R. RAMSEY. On the Hyomandibular Clefts and Pseudo- 
branchs of Lepidosteus and Amia. /ourn. of Anat. and Phys. 
Vol. xix. July, 1885. 
EXPLANATION OF PLATES. 
INDEX LETTERS. 
a. ossicle a of Bridge. 
aa. ampulla anterior. 
A,. superficial portion of adductor mandibulae; A.’, A2”, A2’”, its 
three divisions. 
A,;. deeper portion of adductor mandibulae. 
Aw. mandibular portion of adductor mandibulae; Aw’, Aw”, its two 
divisions. 
A,Aw’. tendon connecting A, and Aw’. 
4;Aw”’. tendon connecting A; and Aw”. 
Aab. lV, Aab.V. adductores arcuum branchialium of fourth and fifth arches. 
ab. nervus abducens. 
abfr. foramen for nervus abducens. 
ac. nervus acusticus. 
acufr. foramen for anterior cerebral vein. 
ae. ampulla externa. 
agi. ramus anterior glossopharyngei. 
Ah. adductor hyomandibularis. 
allg. accessory lateral-line groups of pit organs. 
ana. anterior nasal aperture. 
ANT. antorbital (Sag.), preorbital (Bridge). 
Ao. adductor operculi. 
ap. ampulla posterior. 
aps. afferent pseudobranchial artery. 
ART. articular. 
AS. alisphenoid. 
AUP. autopalatine. 
6. ossicle b of Bridge. 
BB.*-3 first, second, and third basibranchials. 
éf. ramus buccalis facialis. 
éfi0.'-** branches of buccalis facialis to infraorbital sense organs, Nos. 
I to I4. 
