mantis shrimp.....虾蛄

Mantis SHRIMP FOUND ON NEW DORP BEACHAnother of S.empusa 's unique features are their compound eyes. They are different from those of most stomatopods, which have one of the most Amazing forms of vision in the animal kingdom (Cronin et al. 1994). Stomatopods can see polarized light and even parts of the UV spectrum. They have 16 different types of photoreceptors, 12 of which are devoted to color (the human eye has 3) and 4 for UV light, allowing them to perceive a total of 100,000 different colors (Cronin et al. 1994; Squiriglia 2001; San Juan 1998). Like all stomatopods, S.empusa has a trinocular vision (3 overlapping fields of vision) which gives them the accuracy needed to catch their prey with such speed (Cronin et al. 1994).

However, S.empusa does not have color vision and can only see polarized light. Compared to most Stomatopods, their eyes lack most of the modifications and receptors that make Stomatopod vision so unique. For example, gonadactyl and lysiosquilloid mantis shrimp have 6 parallel rows of ommatidia found at the midband region of the eyes, while S. empusa has only 2 parallel rows. Also, gonadactyl and lysiosquilloid mantis shrimp have various color filters inside the photosensitive region of the photoreceptor cell which refine the spectral quality of the light and accentuate it, thus creating even more colors S.empusa lacks all these filters and photoreceptors because it does not have a color vision. They only have one type of rhodopsin or color pigment, while other stomatopods have 10 (humans have 4). Their rhodopsin only absorbs light from the deep ultraviolet spectrum, a large spectrum that compensates for the lack of color (Cronin et al. 1994).

虾蛄在新的DORP蝦蛄empusa ' BEACHAnother發現了; s獨特的特點是他們的复眼。 他們是与那些多数stomatopods不同，有其中一個視覺的最驚人的形式在动物界(Cronin等1994)。 Stomatopods能看到紫外光譜的甚而偏光和部分。 他們有光感受器的16種不同类型， 12致力於顏色(肉眼有3)和4紫外光的，給他们察覺總共100,000種不同顏色(Cronin等1994年; Squiriglia 2001年; San Juan 1998)。 像所有stomatopods， S.empusa有給他們必要的準確性捉住他們的與這樣速度的trinocular視覺(3個重疊的視野) (Cronin的犧牲者等1994)。 然而， S.empusa沒有颜色视觉，並且能只看到偏光。 與多數Stomatopods比較，他們的眼睛缺乏使Stomatopod視覺很獨特的大多修改和感受器官。 例如，而S. empusa只有2平行的行， gonadactyl和lysiosquilloid虾蛄有ommatidia 6平行的行被找到在眼睛的中波區域。 並且， gonadactyl和lysiosquilloid虾蛄有提煉光鬼質量並且強調它在光感受器細胞裡面的光敏區域的各種各樣的滤色器，因而創造更加顏色S.empusa缺­乏所有這些過濾器和光感受器，因為它沒有颜色视觉。 他們只有rhodopsin的一種类型或上色顏料，而其他stomatopods有10 (人有4)。 他們的rhodopsin只吸收從深刻的紫外光谱，补偿缺乏颜色的一個大光譜的光(Cronin等1994)。

Category:

Education

Tags:

• MANTIS
• SHRIMP
• SQUILLA

[monitacheam]

its dead..... you can tell bcuz the eyez r shrivled up you can also tell bcuz its lying upside down wit out moving

[imperiallion]

is this thing dead or just sleeping. that thing looks really dangerous, can it cut a man's finger off?