crab

n. any of a number of crustaceans having five pairs of walking legs; grouch, bad-tempered person

v. complain; criticize; fish for crabs

Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (Greek: brachy = short, ura = tail), or where the reduced abdomen is entirely hidden under the thorax. They are generally covered with a thick exoskeleton, and are armed with a single pair of chelae (claws). Crabs are found in all of the world's oceans; there are also many freshwater and terrestrial crabs, particularly in tropical regions. Crabs vary in size from the pea crab, only a few millimetres wide, to the Japanese spider crab, with a leg span of up to 4 m .
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Noun
1. (astrology) a person who is born while the sun is in Cancer
(synonym) Cancer
(hypernym) person, individual, someone, somebody, mortal, human, soul
(classification) astrology, star divination
2. the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
(synonym) Cancer, Cancer the Crab
(hypernym) sign of the zodiac, star sign, sign, mansion, house, planetary house

Noun
1. decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
(hypernym) decapod crustacean, decapod
(hyponym) stone crab, Menippe mercenaria
(member-holonym) Brachyura, suborder Brachyura
2. a quarrelsome grouch
(synonym) crabby person
(hypernym) grouch, grump, crank, churl, crosspatch
(derivation) gripe, grouse, beef, squawk, bellyache, holler
3. the edible flesh of any of various crabs
(synonym) crabmeat
(hypernym) shellfish
(hyponym) blue crab
(part-holonym) crab cocktail
4. infests the pubic region of the human body
(synonym) crab louse, pubic louse, Phthirius pubis
(hypernym) louse, sucking louse
(member-holonym) Phthirius, genus Phthirius, Phthirus, genus Phthirus
5. a stroke of the oar that either misses the water or digs too deeply; "he caught a crab and lost the race"
(hypernym) rowing, row
Verb
1. direct (an aircraft) into a crosswind
(hypernym) steer, maneuver, manoeuver, manoeuvre, direct, point, head, guide, channelize, channelise
(classification) air travel, aviation, air
2. scurry sideways like a crab
(hypernym) scurry, scamper, skitter, scuttle
3. fish for crab
(hypernym) fish
4. complain; "What was he hollering about?"
(synonym) gripe, grouse, beef, squawk, bellyache, holler
(hypernym) complain, kick, plain, sound off, quetch, kvetch
(derivation) crabby person

(v. t.)
To make sour or morose; to embitter.
  

(v. t.)
To beat with a crabstick.
  

(v. i.)
To drift sidewise or to leeward, as a vessel.
  

(n.)
The zodiacal constellation Cancer.
  

(n.)
One of the brachyuran Crustacea. They are mostly marine, and usually have a broad, short body, covered with a strong shell or carapace. The abdomen is small and curled up beneath the body.
  

(a.)
Sour; rough; austere.
  

(a.)
A movable winch or windlass with powerful gearing, used with derricks, etc.
  

(a.)
A machine used in ropewalks to stretch the yarn.
  

(a.)
A form of windlass, or geared capstan, for hauling ships into dock, etc.
  

(a.)
A cudgel made of the wood of the crab tree; a crabstick.
  

(a.)
A crab apple; -- so named from its harsh taste.
  

(a.)
A claw for anchoring a portable machine.
  

Common Name
African Land Crab
Other Common Names
Scientific Name
Gecarcinus
Family
Crustscea
Community
Crustaceons
Class
--
Temperature
74-80 degrees. Humidity can be maintained with a daily misting.
Lighting
An aquarium florescent light fixture with an aquarium bulb will best meet their needs.
Swimming Range
--
Adult Length
4-6 inches
Feeding Habits
Feeder goldfish, assorted chopped vegetables make the bulk of the diet. Should be offered brine shrimp, flake foods and small amounts of chopped fruits once or twice a week. A 'cuttlebone' broken into 1/4 pieces should be placed in the food dish. A bowl of fresh water needs to be available at all times. The bowl should be large enough for the crab to sit in but shallow enough for them to be able to get out .
Compatibility
Tend to be territorial and cannibalistic. Should be kept individually.
Habitat
The Land Crab should be kept on 2-3 inches of sand or gravel. The substrate should be kept dry and needs to be cleaned at least once a week.
Breeding
Has not been successful in captivity.
Additional Comments
Very little is known about African Land Crabs. They make a good addition to any terrarium and can live 10 to 15 years .

Coenobita perlatus
General Info:
Adult body size 4".
Hermit crabs are very active and fascinating to observe. Although their claws can be used successfully, the properly handled hermit crab makes an excellent "beginner pet" for children. Hermit crabs bodies outgrow their shells! Therefore, several empty shells should be left in the enclosure at all times for every crab. Shell "exchanges" normally occur in the water bowl.
Temperature/Humidity:
Ideal temperature for hermit crabs should range between 70 and 85 degrees. An undertank heater on one side of the enclosure will help to maintain this temperature. Nighttime temperature should remain between 65 and 70 degrees. The humidity for these crabs should be kept at or near 65 percent.
Lighting:
Hermit crabs require ultraviolet lighting to maintain good health. Ultraviolet lighting is recommended for 12 hours per day. The use of a timer will help maintain an accurate lighting schedule.
Feeding/Watering:
Hermit crabs are omnivorous (eat both animal and plant matter). Therefore their diet should include insects, vegetables, fruit, and prepared foods. Suggested vegetables to feed once a week: dark, leafy greens (mustard, collard, radish, and turnip greens or tops, kale, cabbage, dandelion leaves-stems-flowers, broccoli, non-treated backyard grasses and weeds, clover), legumes, mulberry and grape leaves, roses, hibiscus, nasturtiums, carnation flowers, cured alfalfa and timothy hay, soaked alfalfa pellets, thawed frozen mixed vegetables (peas, lima beans, carrots, green beans), peas in the pod, cauliflower, soy bean sprouts, radishes, summer and winter squashes, grapes, apples, oranges, pear, peaches, plums, nectarines, dates, all types of melons, strawberries, raspberries, bananas, mangoes, and tomatoes. Some high protein content foods suggested are: dry maintenance dog food, tofu, and scrambled or hard-boiled eggs. Feeding every other day is suggested as well as dusting food with vitamin/calcium powder every other feeding. Always remove food four hours after it is offered to prevent spoilage. An easily accessible shallow water dish works best with crabs. Water should be changed daily.
Habitat/Housing:
Multiple hermit crabs should be maintained in at least a 10 gallon terrarium. However, for multiple pets, increase habitat size accordingly to ensure each individual has plenty of space to move about and not interfere with tankmates. A screen lid is essential for proper air exchange. An undertank heater should be placed on one end of the tank. A shelter for hiding is necessary, especially if multiple pets are in the same enclosure. Misting the habitat occasionally will help maintain proper humidity levels.
Substrate (Bedding):
2" to 3" inches of Repti-Sand is recommended for hermit crab terrariums to maintain the proper humidity levels within the enclosure.