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相關魚種
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Petrarctus - 魚種在
Scyllaridae - - Classification / Names -
- Scyllaridae
- Decapoda
- Malacostraca
- Chordata
- Animalia
- 魚種在
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Petrarctus brevicornis (Holthuis, 1946)
Blue-back locust lobster| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Petrarctus brevicornis AquaMaps Data sources: GBIF OBIS |
Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS
Malacostraca | Decapoda | Scyllaridae
Environment: milieu / climate zone / depth range / distribution range 生態學
; 深度上下限 60 - 504 m (Ref. 4). ; 35°N - 21°N, 118°E - 134°E (Ref. 4)
分布 國家 | FAO區域 | 生態系 | 發現紀錄 | 簡介
Western Pacific.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm Max length : 1.8 cm CL 雄魚/尚未辨別雌雄; (Ref. 89665); common length : 5.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 4)
簡短描述 型態特徵
Carapace with 2 distinct teeth in the median line before the cervical groove (the gastric and rostral teeth), the pregastric tooth is absent. The region between the postrostral and branchial carinae with only a few tubercles and extensive smooth areas. Abdominal somites 2 to 5 with distinct elevated median longitudinal carina; the carina of the third somite is distinctly higher than that of the other somites. The exposed part of the somites without arborescent pattern, but with a wide transverse groove over the middle; behind this groove a transverse ridge extends along the posterior margin of the somite; before the groove there are tubercles and some wide side grooves. Somite 1 dorsally smooth with only an indication of a transverse groove in the extreme lateral part. Posterior margin of somites 5 and 6 not tuberculate. Fourth segment of antenna with the median oblique carina distinct but not quite straight; a row of tubercles is present on the outer half of the upper surface of the segment, tubercles are also present in the basal part of the median carina. The outer margin of the fourth segment has 3 or 4 teeth, the basal which is the largest (the apical tooth not included in these counts). The thoracic sternum is widely U-shapedly incised anteriorly; the last 4 sternites show an inconspicuous median tubercle. A dorsal fringe of hairs is present on the dactyli of pereiopods 3 to 5. Colour: dark brown above, tubercles slightly paler, sometimes with whitish areas in the branchial region and along the central part of the cervical groove. A dark blue spot in the median part of the first abdominal somite (Ref. 252).
It has lengths of 4 to 5.5. cm, total body length; 1.3 to 1.8 cm and 1.6 to 1.8 cm (ovigerous females), carapace length (Ref. 4). Maximum depth from Ref. 99823. Occurs at a depth range from 60 to 150 m with substrates of sand or mud (Ref. 4).
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
主要參考資料
參考文獻 | 合作者 | 合作者
Holthuis, L.B. 1991. (Ref. 4)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 03 December 2009
CITES狀態 (Ref. 108899)
Not Evaluated
CMS (Ref. 116361)
Not Evaluated
對人類具威脅
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature
(Ref. 115969): 13.1 - 21.1, mean 18.8 (based on 53 cells).