APPENDAGES AND NERVOUS SYST£M OF APUS CANCRIFORMIS, 359 
Preoral 
appendages. 
Truncal appendages. Oral 
A —_— appendages. 
Pregenital (Thoracic). 
aie ei ea a. as 
Postgenital (abdominal). 
N.B.—The carapace is not attached to 
bearing the maxillipedes. 
Tabular enumeration of the Appendages of Apus 
| 
| 
L 
( 
cancriformis. 
Name adopted. 
I, First antenna. . 
II, Second antenna 
Mourn 
Ill, Mandible . . 
IV, Maxilla . 
V, Maxillipede  . 
VI, 1st thoracic foot . 
VII, 2nd a : 
VIII, 3rd 4 
IX, 4th 2 
X, 5th a i 
XI, 6th i ; 
XII, 7th - , 
XILI, 8th “a ; 
XLV, Sth Fe ‘ 
XV, 10th ” ‘ 
XVI, llth _ ; 
XVII, 1st abdomina! foot 
. 
ci, bond whdowinal foots 
Synony nis. 
. Antennule: tactile an- 
tenna. First thoracic 
foot of Zaddach. 
. Antenna: rowing-anten- 
na. Second theracic 
foot of Zaddach. Ab- 
sent according to 
Claus. 
. First and second maxil- 
lee of Zaddach, Grube, 
and Gerstaecker. 
Second maxilla of Claus ; 
third thoracic foot of 
Zaddach ; rudimentary 
foot of Grube and Ger- 
staecker. 
‘6 Leg-like foot. 
iS peop 
_& Swimming foot. 
=a S 39 33 
Cc : ; 
= S ; 2 
Oh ie » ” 
oo 
ao ” be) 
= g 3”) 3) 
= 3) ” 
de 
a 5) 22 
ia £ % » 
“Se Oostegopod in female, or 
D brooding foot (Mutter- 
fuss of Schaeffer). 
(‘Kpoq ay} Jo suorepnuue 
wipuodsaiio0d woaymoaes ATUQ) 
Q 
Oo 
the segments posterior to that 
The last body-segment (thirty-third from the attachment of the 
carapace) has a pair of fureal processes, and is perforated by the 
anus, 
The four body-segments in front of it carry no feet, the next two 
in front (28th and 29ih of the segments of the trunk) have to- 
gether as many as twelve pairs, 
