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Updated: June 3, 2025
Cosmarium binoculatum. 34. Cyclops quad. 35. Cyphroderia amp. 36. Cypris tristriata. 37. Daphnia pulex. 38. Diaptomas castor. 39. " sull. 40. Diatoma vulgaris. 41. Difflugia cratera. 42. " globosa. 43. Dinobryina sertularia. 44. Dinocharis pocillum. 45. Dirt. 46. Eggs of polyp. 47. " entomostraca. 48. " plumatella. 49. " bryozoa. 50. Enchylis pupa. 51. Eosphora aurita. 52. Epithelia, animal. 53.
No one suspects, I fancy, at this moment, that the solid envelope of the Scutellae and the Clypeasters is traversed by a net-work of radiating tubes, corresponding to those of the medusae, so well presented by Ehrenberg in Aurelia aurita.
"In comparing the several stages in the very interesting development of the cyanæa aurita to the infusoria and polypes, it must be understood that such comparisons are warranted only by a similarity of outward form, and of the instruments of locomotion and prehension.
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