1887] : 3 Zoology. 185 
the pore-canal into the hair; but the same is enclosed by epithelial 
cells which surround the pore-canal. 
Kraepelin thus sums up our present knowledge of the olfactory 
organs of Coleoptera: The terminal apparatus of the organ of sense 
in the antenne of beetles consists in each case of a ai delicate 
or iSong long or short hair-like —— Set as planted in the 
mt. le of a more or less arched, “ e membrane” closing in 
the sai pore-canal of the Saleen vall “D his membrane extends 
over the st at the same level as the surface of the antennal 
integument (Geotrupes, Strangalia), or it rises as a cupola in the 
middle of a beaker-shaped pit (Melolontha, Buprestide, Dytiscidz). 
Often such sense-organs (either with or without special pits) are so 
united that they stand associated in flat depressions of the surface 
of the antenne, the so-called “ compound” pits (Melolontha, Stran- 
- galia, Euchroma, Lucanus, etc.).—. Kraepelin. 
ZOOLOGY. 
Mimicry in Amphipods.—Dr. Carl orena ga ryta 
Acta Reg. Soc. Sci. Upsaliensis, xviii., 1886) a new genus of Hy- 
perid Amphipods, the three species of wicks are ie for 
their mimicry of jelly-fishes. The head and five, six, or all seven 
of the thoracic segments are enormously inflated, so that the an- 
terior part of the body closely resembles the bell: of a medusa, 
while the feet and compressed abdomen hang down like the ten- 
t 
following: The eyes “do not form a continuous mass on each 
side of the head as, in the other Hyperids, but consist of six to 
ten large ocelli scattered over the lower side of the head. These 
do not show such long crystallic [szc] eak as in Phronima, 
Rhabdosoma, and others, but seem to be composed each of a 
great many granular, fine, ighe amakiig corpuscles interspersed 
with dark brown pigment.” The innervation of these ocelli is 
eculiar; some receive their nerve-supply directly from the 
not remains to be determined by sections of fresh specimens, 
but it is interesting to note that all the ocellar nerves betort 
arise 
bell” 
` Mimonectes om the a rom 
the Canary Isles; and M. steenstrupii, from the mouth of Davis 
Strait. 
