My dad was a waterman and I started working on the boat with him when I was 13. No need to wait for a hermit crab to come out of its shell so you can tell the difference – and don’t even think about forcing it out because that poor ‘ol hermit crab would rather get torn apart than be pried out of its humble abode. You can also identify the male crabs by looking at the bottom side or belly of the crab. There are two ways to identify your crab as being either male or female including claw color and apron shape. In addition to the claws, there are other (better) ways to determine the gender of a blue crab. Underside view of (A) a male crab, 7 inches across the back, (B) a female crab, 6 inches across the back. Any movement when you turn a (male) crab over and press the underside next to the second walking leg. Males have blue claws, and, like most humans, female blue crabs "paint their fingernails" (i.e., the tips of their claws are "painted" red!) • Males are larger and heavier than females. A second way to tell the difference between males and females is by the shape of their “apron”. First, take a look at the crab’s claws. The top edges of the claws and upper pincers are prominently sawtoothed, there being more than … The difficulty of determining the gender of a crab can range from quite easy to moderately challenging, depending on the type of crabs you are trying to sex. Peeler crabs are actually just hardshell blue crabs that are showing signs of molting. Those who prefer males often do so because catching females is controversial in other some other states. Still wondering why some prefer one over the other? Blue crabs may grow to a carapace width of 23 cm (9.1 in). A common shell house preferred by most hermit crabs is the sea snail shell, although some species use mollusk shells like clam or mussels, and even wood. 1 2 3 6 5 4 Male Female Boys and girls As juveniles, male and female mud crabs are difficult to tell apart but it gets easier as they mature. Growth is problematic because the old shell must be shed and a larger one formed in its place. Hello, I have two red claw crabs female and male, they have been in the same tank for over 6 months and not breed once. As you can see, it’s apron is much more pointed when compared to the wider female blue crab. Not once I have see them both together and when the female comes close to the male he runs away. Here's a picture showing the difference. Male blue crabs are prized for picking. This would include feeding habits or any unique behaviors. Click to see full answer Similarly, which crab is better male or female? Here's an easy way to tell the difference between a male and female blue crab. 2.Male crabs have a smaller, more triangular, or rocket-shaped underbelly markings compared to the female crabs’ broader or dome-like marking. There's no difference. You can also look at the hermit crab’s genitals. A female hermit crab possesses small genitalia called gonopores, which are two tiny holes located at the back of its legs that are nearest to the abdomen. (F) Mature female crabs are exempt from minimum size limit. present in the urine of the female crabs. 3.A female crab usually appears to have some fertilized eggs tucked in-between its body and flap. From watching the locals, I learned that buying crabs is a hands-on affair. Male and female New Zealand pea crabs differ in their size, shape and colour. Keep reading to find out why some people may have a preference for one gender over the other. Difference between Male and Female Goldfish, Difference Between Male and Female Urinary System, Difference between Sexual and Asexual Reproduction, Difference between Identical and Fraternal Twins, Has legs on left side of abdomen for carrying eggs, Reproductive organ at the base of 5th pair of legs, Reproductive organ at the base of middle legs, Difference between a Male and a Female Hermit Crab. Just a reminder though, there are very few differences between male and female hermit crabs across all species. This flap is referred to as the apron. • The claws are larger in males than in females. You are correct that the law has changed since this was originally posted. Good thing you show both ways on here! Female crabs, however, have red tips on their claws like in the second picture. If ever you can coax your hermit all the way out of its shell, keep an eye out for this since this is one of the few, surefire ways to find out the sex of a hermit crab. I believe it was back in 2016. Let’s start by taking a look at their physical differences. Required fields are marked *. You can identify the male crabs by the bluish color on the tip of the claws. The females are smaller, and IIRC, the openings in the crab traps are sized so that the females can get out. They are easily identified by their blue claws and inverted t-shaped apron which resembles the Washington Monument. The male can grow to nine inches from point to point. First, take a look at the crab’s claws. There are two ways to identify your crab as being either male or female including claw color and apron shape. It has always been a misconception that the size of the pincers, or claws can aid in telling the sex of a hermit crab. It is illegal to possess immature female crabs at any time and it is illegal to possess dark sponge crabs from April 1-April 30. You may also see crabs with triangle-shaped aprons. Male vs Female hermit crab Male hermit crabs don’t have legs on their abdomen. It is quite difficult to tell a male hermit crab apart from a female hermit crab. She applies a boston crab to her totally defeated male opponent whilst issuing you a challenge at the same time. People don’t like to pay the same price for females because they are usually lighter – girls usually have les meat on them and they hold more water . Some states do not permit fishermen to keep females. C. sapidus individuals exhibit sexual dimorphism. Like to let smal fem go the more crabs the beter feutchur ..for all. Without interrupting spawning, it is possible to determine the gender of the horseshoe crab by the size and location. Thus only a female would have the capacity to carry eggs. Save my name, email, and website in this browser for the next time I comment. Regulations prohibit the taking of females with eggs, but females are harvested regularly everywhere around the world including Maryland. When these smart little critters outgrow their shell, they need to find a suitable one to move into (called molting). Heyo, I got these awesome pompom/boxer crab. Those who prefer females usually claim that their meat is sweeter. Male blue crabs have bright blue claws whereas female blue crabs have red tips on their claws. In most fiddler crab species with a “female choice” type of mating system, male territories are clustered and females visit males within these clusters. Land hermit crabs live mostly on land, thriving in tropical areas, using access to both seawater and freshwater to keep their gills wet and to reproduce. The #1 Male crab, also known as a “Jimmy”, are typically the most sought after type of crab. Copying is allowed with active link to TheyDiffer.com. The bottom apron is the shape of the Washington monument. Upon locating an available female, the male initiates a protective pre-mating embrace that lasts for several days. 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