510 Mr. G. A. Boulenger on the 
ge ek notatipes, Walk. loc. cit. p. 73. n. 9,= Heterogaster urtice, 
abr. 
atriclava, Walk. loc. cit. n. 10,= Nysius contiguus, Walk. 
Rhyparochromus armatipes, Walk. loc. cit. p. 91. n. 116,= Dieuches ar- 
mipes, Fabr. 
—— luscinus, Walk. loc. eit. p. 93. n. 120,= Dieuches luscus, Fabr. 
concinnulus, Walk.* loc. cit. n. 121,= Tropistethus seminitens, Puton. 
testaceipes, Walk. loc. cit. p. 101. n. 160,= Dieuches punctipes, Dohrn. 
delineatus, Walk. loc. cit. p. 103. n. 169,= Pamera pallicornis, Dall. 
terminalis, Walk. loc. cit. p. 105. n. 178,= Narbo biplagiatus, Walk. 
alienus, Walk. loc. cit. n. 175, = Letheus descriptus, Walk. 
tnornatus, Walk. loc, cit. p. 112. n. 196, = Pamera nigriceps, Dall., var. 
Gastrodes terminalis, Walk. loc. cit. p. 122. n. 3,= Clerada apicicornis, Sign. 
Ischnodemus multilinea, Walk. loc. cit. p. 131. n. 29,= Aphanus albofascia- 
tus, Stal. 
centralis, Walk. loc. cit. p. 1382. n. 31,= Macropes spinimanus, Motsch. 
Ophthalmicus cinerascens, Walk. loc. cit. n. 138, n. 31,= Geocoris tricolor, 
Fabr. 
Cymus truncatulus, Walk. loc. cit. p. 142. n. 15,= Ischnorhynchus gemt- 
natus, Faby. 
Thaumastopus? alacer, Walk. loc. cit. p. 147. n. 2,= Noualhieria quadri- 
punctata, Brull. 
? alacris, Walk. loc. cit. n. 2 (duplicated),= Cnemodus mavortius, 
Say. 
Api aeone suberuciatus, Walk. loc. cit. p. 151. n. 15,= Oxycarenus macu- 
latus, Stal. 
To be treated as non-ewistent. 
Species the types of which are not now to be found in the British Museum. 
Rhyparochromus serripes, Walk. Cat. Het. v. p. 92. n. 117 (1872). 
collaris, Walk. loc. cit. p. 111. n. 198. 
Ischnodemus longus, Walk. loc. cit. p. 127. n. 8. 
Anisocoris punctifer, Walk. loc. cit. p, 148. n. 1. 
Rhyparochromus cireumcinctus, Walk. Cat. Het. v. p. 97. n. 147 (1872),= 
an immature form of a Lygeeid. 
Ischnodemus strigatus, Walk. loc. cit. p. 180. n. 27. Type in very bad 
condition. 
LXII.—List of the Fishes of the Characinid Genus Disti- 
chodus, Mill. d& Trosch., with a Key to their Identification. 
By G. A. BouLENGER, F.R.S. 
I, Sq. 87-57 goss. 
A. Snout not compressed. 
1. D. 16-18, separated from the adipose 
by a space equal to its base. 
A. 15-16; Sq. 38-41 gy; 6 or 7 scales 
between lateral line and ventral ; caudal ; 
lobes) poimted Seep ache igen 1. D. notospilus, Gthr. 
* The species standing under Walker's name, though not agreeing with 
description (Horvath). 
