Staurozoa |
Stauromedusae |
Kishinouyeidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
. Tropical
Southwest Atlantic: Brazil (Ref. 813) and Puerto Rico (Ref. 84272).
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ?  range ? - ? cm
Nodular gonadal lobes erect, on oral surface, with broad adhesive pad-like organ on the arm tips and without an axial canal. Calyx about 15 mm maximum diameter, divided into 4 pairs of arms, resembling a cross, which is broadest near the center. Four broadly curved u-shaped perradial notches, 2x deep as the u- or v-shaped interradial notches. Arms with 6-25 short hollow capitate secondary tentacles on oral side near tip. Number and size of tentacles increase with calyx size (3 mm diameter, 9-11 tentacles; 12 mm diameter, 15-18 tentacles). Capitate ends of tentacles composed of adhesive cells. No cnidoblasts. Primary tentacles lacking in large individuals. Aboral surface smooth, without ridges or grooves, covered with numerous evenly scattered nematocyst warts. Mesoglea of aboral wall thick and less transparent than membranous oral wall. Oral surface smooth and easily folded. Numerous disc-shaped white spots on oral surface near gonads, mouth and calyx margin, i.e., vesicles, which are filled with numerous eurytele nematocysts. Manubrium short and cruciform, lips highly pleated. Pylorus of coelenteron with many (about 200) short gastric cirri. Interradial septa extend from pylorus to margin, allowing 4 radial pockets to communicate. Gonads arranged in 8 sinuous adradial bands of closely packed follicles extending from the pyloric region to the tentacles.
Green and reddish brown medusae with diffuse pigmentation. It occurs in seagrass beds. This is the only known Atlantic species of stauromedusae. Occurs in shallow algal/seagrass beds, where it can anchor with its pedal disc or arm tip adhesive organs. Feeds on small crustaceans (shrimps and amphipods; Ref. 84272) (Ref. 813).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae
Members of the class Scyphozoa are gonochoric. Life cycle: Egg is laid by the adult medusa which later develops into a free-living planula, then to a scyphistoma to a strobila, and lastly to a free-living young medusa.
Migotto, A.E., A.C. Marques, A.C. Morandini and F.L. da Silveira 2002 Checklist of the cnidaria medusozoa of Brazil. Biota Neotropica 2(1):1-31. (Tài liệu tham khảo 813)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
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Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvae PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
Estimates based on models
Price category
Unknown.