Fig. 2. Left pleural ganglion of Cæcum. ×300.
Fig. 3. Left pedal ganglion of Cæcum. ×300.
Fig. 4. Reconstruction from Cæcum, showing position of eyes and ganglia viewed from the ventral side. ×70.
The following list is from the collections of 1917, or that part of it sent to the U. S. Nat. museum for determination.
_Aruga oculata_ Holmes. L. 6 mm., white with red on the head. From algæ. Another white specimen of 8 mm. Dredged at 10 f.
_Lilljeborgia brevicornis_ Bruz. One specimen dredged Aug. 28. Head white upper half, lower half pink. Lower part of body pink, upper white. L. 6 mm. Another head end of body red, caudal end white. L. 4 mm. Dredged Aug. 11 and Sept. 17th.
_Elasmopus brasiliensis_ Dana? L. 6 mm., yellow, brown eyes. Line on back.
_Melita quinquedentata_ Shoem. L. 6.5 mm. Tide pools Aug. 29.
_Allorchestes_ sp. immature. One lot pale green, red antennæ, L. 3.5 mm. One red L. 10 mm. One from holdfasts brown and red. L. 6 mm.
_Hyalella azteca_ Sauss. Brown green, 3.5 to 4 mm.
_Hyale_ sp. One red, L. 4 mm. One dark L. 6.5 mm. One pink-brown from sulphur sponge. L. 7 mm. One rose on back, ringed with white. One yellow green back, L. 5.5 mm. One yellow, pink antennæ, holdfast L. 11 mm. One brown from algæ L. 5 mm. One rose brown. L. 6 mm.
_Orchestoidea corniculata_ Stout. Green grey, bluish antennæ L. 14 mm.
_Lembos_ sp. bands on body. L. 6 mm. From holdfasts.
_Microprotopus_ sp. Bands on body. L. 6 mm.
_Photis californica_ Stout. Bands on body. Holdfasts.
_Neophotis inequalis_ Stout. Brown and red. L. 6 mm. Holdfast.
_Amphithoe corallina_ Stout. Yellow, green antennæ. L. 8 mm. Another mottled white and black L. 10 mm. Another brown white legs two white spots on the sides. One with green eggs L. 9 mm.
_A. vaillantii_ H. Lucas. Bright Red, L. 13 mm. Dredged 10 f. Aug. 17.
_A. rubricata_ Montagu (?) Brownish green, yellow spots on sides. Aug. 12, 1915.
_Amphithoe_ sp. Pink, red antennæ, L. 11 mm.
_Amphithoe_ Yellow, pink antennæ. Holdfast.
(_Contribution from the Zoological Laboratory of Pomona College_)
Journal of Entomology and Zoology--_Advertising Section_
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_Edited by WALTER E. COLLINGE, M. Sc., F. L. S., F. E. S. The Gatty Marine Laboratory The University, St. Andrews, Scotland_