1870.] MR. A. G. BUTLER ON ACRHA ANDROMACHA. 777 
15. TrrepHoRIs MACULATUS. 
T. subulata, robusta, solide; anfractibus decem, triseriatim 
granulosis, serie superiore multo majore, serie mediana lineari ; 
eanali basali brevi, recurvo; apertura subcirculari; serie su- 
periore granorum lutescente, seriebus inferioribus fuscis, albo 
irregulariter maculatis. 
Long. 7, diam. 24 mill. 
Hab. Ins. Kauai. 
16. TrRIPHORIS BRUNNEUS. 
T. subulata, solida; anfractibus duodecim, triseriatim granu- 
losis, interstitiis suturaque punctulatis, serie granorum me- 
_ diana paulo minore ; canalt basali oblique producto; apertura 
obliqua, late ellipsoidea; serie superiore granorum fusca, serie- 
bus inferioribus cineraceis. 
Long. 7, diam. 2} mill. 
Hab. Ins. Apaiang. 
17. TRiPpHORIS GRACILIS. 
T. elongato-cylindracea, solida, nitida; anfractibus quatuorde- 
cim, longitudinaliter irregulariter costulatis, triseriatim spi- 
raliter granulosis, granis equalibus, longitudinaliter costulis 
convexis ; canali basali brevi ; rosacea, serie superiore granorum 
pallida. 
Long. 7, diam. 1? mill. 
Hab. Ins. Kauai. 
6. Note on Abnormities in the Neuration of the Hind Wings 
in Acrea andromacha. By A. G. Buruer, F.L.S. 
I have recently had occasion to look into the structural characters 
of the butterflies constituting the subfamily Acreeine, and whilst so 
doing I have discovered a fact of great interest and some importance 
with regard to the neuration of Acrea andromacha, Fabr. 
I have carefully examined eighteen specimens of the above species, 
and found aberrant characters in three of them; they differ from 
each other and from the typical form as follows :— 
1. Differs from typical form in the possession of a short spur, 
about 5), of an inch in leggth, emitted from the inner edge of the 
first subcostal branch of hind wing at about 4 of its length from its 
origin ; only occurs on the left-hand wing. 
2. Differs from preceding in the length and position of the spur, 
which measures about 4 of an inch, and is emitted at about +of the 
length of the subcostal from its termination. 
3. Differs from first form in the possession of a spur about 4 
of an inch in length emitted from inner edge of subcostal in right- 
hand wing and in a position exactly corresponding to the spur of 
the left-hand wing. 
