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- Calocalanus pavo, One of the Free-swimming Copepoda of the Plankton
- Lepismas at Work
Living in chinks and crannies of ranges in our homes, and occasionally in bookcases and closets where glutinous and sugary matters abound, but which has probably not been met with elsewhere, is a strange but beautiful little creature which, as far as can be determined, goes through the brief round of its existence without a name to distinguish it from its fellows. Few entomologists have given any special attention to its family relationships. The possession of certain bristle-like appendages which terminate the abdomen, and which are no doubt comparable with the abdominal legs of the Myriopods, or Thousand Legs, classes it with the Bristle-tails, or Lepismas. In general form, a likeness to the larva of Perla, a net-veined neuropterous insect, is manifest, or to the narrow-bodied species of Blattariæ, or Cockroaches, when divested of wings. - Cirolana borealis
- Newly-hatched Young of a Crayfish
- Beach crabs
Beach crabs - fruit cluster of the dandelion
- Trypanosoma Ziemanni, from the blood of the little owl
Trypanosoma Ziemanni, from the blood of the little owl. The stages shown in Figs. 52–54 are passed inside the gnat. The spiral and pear-shaped bodies of Fig. 54 pass from the gnat’s proboscis into the blood of the little owl, and grow there into the large forms here figured. A, B, and C are females, destined to be fertilized by spermatozoa when swallowed by a gnat. D and E are male Trypanosomes, which will give rise each to eight fertilizing individuals or spermatozoa as shown in Fig. 56—when swallowed by a gnat. - Common Cockroach
(Blatta orientalis). a, female; b, male; c, side view of female; d, young. After Marlatt, Entom. Bull. 4, U.S. Dept. Agric. The young creature is hatched from the egg in a form closely resembling, on the whole, that of its parent, so that the term 'miniature adult' sometimes applied to it, is not inappropriate. The baby cockroach is known by its flattened body, rounded prothorax, and stiff, jointed tail-feelers or cercopods; the baby grasshopper by its strong, elongate hind-legs, adapted, like those of the adult, for vigorous leaping. - Hyperia galba, Female
- Newborn Cicada
Although Cicadas abound most upon the oaks, yet there seem to be no trees or shrubs that are exempt from their attacks, unless it be the various species of pines and firs. The punctured limbs languish and die soon after the eggs are laid, and as often happens are broken off by the winds; but when this is the case the eggs never hatch, for the moisture of the living branch seems necessary for their proper development. The eggs are one-twelfth of an inch in length, and one-sixteenth of an inch through the middle, but taper to an obtuse point at each end. They are of a pearl-white color. The shell is so thin and delicate that the form of the inclosed insect can be seen before the egg is hatched. One writer claims that fifty-two days, and others that fourteen days, constitute the period required for the hatching of the egg. When it bursts the shell the young insect is one-sixteenth of an inch long, and is of a yellowish-white color, excepting the eyes and the claws of the fore-legs, which are reddish. It is clothed with small hairs. In form it is grub-like, larger proportionally than the parent, and provided with six legs, the first pair being very large, shaped like lobster-claws, and armed beneath with strong spines. Little prominences take the place of wings, and under the breast is a long beak for suction. Its movements, after leaving the egg, are very lively, and nearly as quick as some of the ants. - A Fish-louse (Caligus rapax), Female
- Mourning-Cloak Butterfly
Larva Feeding on Willow Leaf, and Chrysalis Suspended from Twig. - Front Part of Body of a Prawn infected, parasites
- The Common Lobster (Homarus gammarus,) Female, from the Side
- Beaver
- The Zoëa Larva of a Species of Sergestes
- A Well Shrimp (Niphargus aquilex)
- King Snake
- Echidnophaga gallinacea
- Sea crab
Sea crab - Freshwater Shrimp
Freshwater Shrimp - Beaver 2
- Chokeberries
- The Surinam Toad
- Pigeon tick
Pigeon tick ( Argas reflexus ) seen from the back and from the ventral side, enlarged. The top is rusty yellow, the bottom is yellowish-white (as is the edge of the body and legs), unless the food channel is filled with a colored substance. - Great Sea Spider
Great Sea Spider - Adaption of Horned Poppy for needlework
- The Nauplius Larva of a Species of Barnacle of the Family Lepadidæ, showing greatly-developed Spines
- Last Larval Stage of the Common Porcelain Crab
- Lily and Rose
- Front Part of Body of a Prawn infected, parasites
- Peach
- Freshly hatched larva of Julus multistriatus
Freshly hatched larva of Julus multistriatus? 3 mm. long: a, 5 pairs of rudimentary legs, one pair to a segment. - Mimonectes loveni. A Female Specimen seen from the Side and from Below
- Chiasognathus Grantii 2
- The cockroach mite
The cockroach mite, Pimeliaphilus podapolipophagus - The flowers of the partridge vine
- Pediculus vestimenti 2
- Pouched Frog
- Protozoa from the gut of the wood-feeding cockroach
Protozoa from the gut of the wood-feeding cockroach Cryptocercus punctulatus. A, Eucomonympha imla, female above, male below, c. X 375. (From Cleveland [1950c].) B, Barbulanympha sp. (From Cleveland [1953].) C, Urinympha talea, c. X 712. (From Cleveland [1951a].) D, Rhynchonympha tarda, c. X 450. (From Cleveland [1952].) E, Trichonympha okolona or T. algoa, c. X 390. - Stages in the Life-history of Hæmocera danæ, One of the Monstrillidæ
- Nebalia bipes
- Study of Horned Poppy
Study of Horned Poppy - A Common Hermit Crab
- The Gribble (Limnoria lignorum)
- One of the Abdominal Somites of the Lobster, with its Appendages, separated and viewed from in Front
- First Larval Stage of Munida rugosa
- Two birds watching a bug
- Left spiracle of nymph of Argas persicus
- Chrysalis of Tomato Worm
- The coffee tree
The Coffee Tree For the Satisfaction of the Curious, have prefix’d a Figure of the Tree, Flower, and Fruit, which I delineated from a growing Tree in the Amsterdam Gardens. - The Common Shrimp (Crangon vulgaris)
- Representative Protozoa associated with cockroaches
Representative Protozoa associated with cockroaches. A, Monocercomonoides melolonthae, X 3094 (after Grassé). B, Coelosporidium periplanetae, X 1310 (after Sprague); trophozoite with spores and chromatoid bodies. C, Endamoeba blattae, X 273 (after Kudo); trophozoite. D, Lophomonas striata, X 330 (after Kudo). E, Lophomonas blattarum, X 660 (after Kudo). F, Retortamonas blattae, X 3094 (after Wenrich). G, Nyctotherus ovalis, X 175 (after Kudo). H, Gregarina rhyparobiae, c. X 52: mature trophozoite attached to intestinal wall of Leucophaea maderae. (Redrawn from J. M. Watson [1945].) I, Diplocystis schneideri, c. X 14.4 (after Kunstler). J, Gregarina blattarum, c. X 57 (after Kudo). K, Protomagalhaesia serpentula, X 36 (after Pinto). L, Gamocystis tenax, magnification not known (after Schneider). - Thirteen-Spotted Lady Beetle
- Cordylobia anthropophaga
- Copilia quadrata (Female), a Copepod of the Family Corycæidæ
- Gills of the Lobster, exposed by cutting away the Side-flap of the Carapace
- Cimex lectularius
- The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Second Stage
- Rana Clamata, or Green Frog