SIPHONOSTOM. 
195 
Lamippe rtibra (Bruzel.), S. Swedeil^ from the cavity of Pmnatula ruhra. 
Adult specimens described, tdrfTc. vi. p. 6, pi. 1. figs. 4 & 5. 
Enahyonium, g. n. Corpus feminse elongatum, segmentis nullis vel (in 
adulto) minus distinctis. Antennse anteriores fere triarticulatae, articulo 
ultimo elongato, subulato. Rostrum nullum. Maxillipedum triarticula- 
torum duo paria. Rudimenta pedum abdominalium in junioribus. Ap- 
pendices caudales juniorum trifurcse, adultarum indivisae, crassae. Allied to 
Lamippe. E. ruhicundum, sp. n., Bohuslan, S. Sweden, from Alcyonium digi- 
tatum, on the slime of which it feeds, id. 1. c. vi. p. 5, pi. 1. figs. 1-3. 
Lern;eopodid;e. 
Lernceopoda edwardsi, new name for L. salmonea (Mayor, M.-E., nec 
Krby.), and L. longimana^ subsp.n., allied to L. gadi (Krby.), from gills of 
Raja fullonica and hatis'i id. 1. c. v. pp. 36 & 38, pi. 2. figs. 18-22. 
Vanbenedenia kroeyeri (Malm), S' & $ described, id. ibid. pp. 39 & 40, 
pi. 2. figs. 16 & 17. 
Char opium dalmanni (Retz.), from the nostrils and gills of Raja hatis : 
id, ibid. p. 41. 
Brachiella rostrata (Kroy.), from Hippoglossusy A aiid young 5; and B. 
obesa {Lernceopoda^ Bjfoy.), from the mouth of Trigla gurnardm : described, 
id. ibid. pp. 41-44. 
Anchorelia rugosa and emarginata (Krby.), both from AnarrhichaSj and 
scarcely distinct ; id. ibid. pp. 44 & 45. 
LERNTEiDiE {PennellidcB). 
This family consists rather of analogous than of absolutely allied forms, the 
males and the shape of the ovisac being different. Medesicastes, Lesiira^ 
and even Silenium may be removed to the Chondracanthidce j Penella and 
Lerncea to the Eichelestidce : id. ibid. pp. 45 & 46. 
Le7'ncecenicus spratii (Sow. )=monilaris (M.-E.), and Ij. encrasicoli (Turt.), 
from the eye and pectoral fin of Clrupea sprattuSf very closely allied, described, 
id. ibid. pp. 46 & 47. 
Lerncea branchialis (L.). A few remarks concerning a specimen found on 
Labrus mixtus : id. ibid. p. 48. 
A Lerngean species, living on the blind fish, AmblyopsiSf in the Wyandotte 
Cave, is indicated by Cope in the Indianapolis Journal, Sept. 6, 1871 \cf. 
Ann. N. H. (4) viii. p. 369]. 
XIPHOSURA. 
A. S. Packard (P. Am. Ass., reprinted in Q. J. Micr. Sci. 
(2) xi. pp. 263-267, and also abstracted, with figures, in Am. 
Nat. iv. pp. 498-502) has published a paper On the Embry- 
ology of Limulus polyphemus” in which the development of that 
sp. is elaborately discussed. The eggs are laid in great numbers 
loose in the sand, the ^ fertilizing them after they are dropped. 
The primitive bud is confined to a minute area, and rests on the top 
of the yelk, as in the Spiders and Crustacea without metamor- 
phosis. In the first stage, 3 pairs of rudimentary limbs are 
observed, the most anterior representing the false mandibles of 
Savigny, and being situated just in front of the mouth-opening. 
In a second stage, there are 6 pairs of appendages, increasing in 
p 2 
