148 
MOLLUSCA. 
Cratena hylgia, lonyihursa, and ? luguhris, spp. nn., Bergh in Semper’s 
Reisen, ii. pp. 4-9, pi. 1. fig. 2, pi. 3. figs. 16, 17, and pi. 4. figs, 1-28, Phi- 
lippines. (On the genus Cratena^ see Zool. Rec. iv. p. 555.) 
Flahellina, Guv., redescrihed hy R. Bergh. Rhinophoria perfoliata. Ten- 
tacula elongata. Papilla) dorsales pedamentis compressis irnposita), eradi- 
antes. Pes angulis anteriorihus tentaculatim productis. Mandibula) mar- 
gine minutim denticulate. Radula dentibus uniseriatis. To this genus 
belong three Mediterranean species, affinis (Gmel.), peregrina (Gmel.), and 
Jlahellum (V^rany), and a fourth from the Philippines, FI. semperiy sp. n., the 
anatomy of which is also given by R. Bergh in Semper’s Reisen, pp. 18-30, 
pi. 2 and pi. 3. figs. 1-15. 
JEolis (Flabellma) bostomensis, Couthouy, riijibranchialisy Johnst., pilata, 
sp. n., and stellata, Stimps., Gould, Invert. Mass. 2nd edit. pp. 241-245, pi. 19. 
figs. 270-282, Massachusetts. 
CcBcinella, gen. nov. Rhinophoria vagina instructa. Papillae dorsales uni- 
seriatse j postice ad radicem caudee insuper appendices claviformes adsunt. 
Bursae cnidophorae nullae. Radula dentibus uniseriatis. Mandibulae adsunt. 
C. luctuosa, sp. n,, Bergh, /. c. p. 12, pi. 1. fig. 1, and pi. 5. figs. 1-19, Philip- 
pines. 
.iFolis {Cavolind) picta, Alder and Hancock, diversa, Couthouy, Gould, 
Invert. Mass. 2nd edit. pp. 246, 247, pi. 19. figs. 282 and 267, 268, 276, 280, 
Massachusetts. 
JEolis {2'ergipes) deapecta, Johnst., and gymnota, Couthouy, Gould, Invert. 
Mass. 2nd edit. pp. 248, 249, pi. 16. figs. 222-225 and 238-241, Boston. 
Cdliopcsa? fuscatuy sp. n., Gould, ibid. p. 260, pi. 16. figs. 218-221, Boston. 
Embletonia fuscata and remigatay spp. nn., Gould, ibid. pp. 251, 252, pi. 16. 
figs, 229-232 and 214-217, Boston. 
Phyllobranchus prasinasy sp. n., Bergh, 1. c. pi. 1. figs. 6-8, Philippines. 
Cyerccy gen. nov., indicated from drawings made by C. Semper in tlie 
Philippine Islands, representing two species, degans and nigniy Semper, /. c*. 
pi. 1. figs. 9 and 10. 
IlERM^EIDiE. 
Hermcea cruciatuy sp. n., Alex. Agassiz, MS., Gould, Invert. Mass. 2nd 
edit. p. 253, pi. 17. fig. 256, Naushon Island, Massachusetts. 
Ilet'mcsopsisy gen. nov., variopineta [-fcfrt], sp. n., Costa, Ann. Mus. 
Nap. iii. 1869, with figures, Naples. 
Hero forrnosa (Lov^n), from Christianiafjord, described by Sars, Bidr. 
Christ, fauna, p. 81. 
Alderia harvardiensUy Agassiz, Gould, Invert. Mass. p. 254, pi. 1 6. figs. 226- 
228, Cambridge, Massachusetts. 
Beccaritty gen. nov., allied to Hermcea and CaUiopcea . — B. tricolory sp. n., 
S. Trinchese, Ann. Mus. di Stor. nat. Genova, Dec. 1870, pp. 47-54, pis. 4-7, 
Genova. 
Elysitdas. 
Elysia albomaryinata and viridissima, sp. n., not yet described, from Genoa. 
S. Trinchese, Bull. mal. Ital. iii. p. 31. 
Elysia chloroticay sp. n., Agassiz, MS., Gould, Invert. Mass. 2nd edit, 
p. 256, pi. 17. figs. 251-256, Cambridge, Massachusetts. 
