Flower crab-國立臺灣博物館典藏查詢資訊系統-Collection-TMCD000040

Flower crab Collection Image, Figure 1, Total 3 Figures

Flower crab Collection Image, Figure 2, Total 3 Figures

Flower crab Collection Image, Figure 3, Total 3 Figures

Flower crab

species_info
- english title:Flower crab
- scientific_name:Portunus pelagicus
- DIVISION:Arthropoda
- subphylum:Crustacea
- class:Malacostraca
- orders:Decapoda
- family:Portunidae
- genus:Portunus
- species:pelagicus
- scientific_name_pub_year:1766
- scientific_name_pub_doc:(Linnaeus, 1766)
- species_author:Linnaeus
- common name
  - common name english:blue crab
collection_content
- collection_locality
  - country_id:TWN
  - country_en:Republic of China
  - subdivision_1_en:Taipei Prefecture
  - subdivision_2_en:Keelung District
  - subdvision_3_en:Keelung
  - locality_en:Keelung,Keelung District,Taipei Prefecture
  - latitude_value:25.152503
  - latitude_direction:N
  - longitude_value:121.767149
  - longitude_direction:E
- collection_info
  - collection_date:1922.08.18
  - Collection Date:1922/08/18
  - quantity:1
- collection_record
  - catalog no:TMCD000040
  - CAT_NO:CR.0040
gdesc_info
- GDESC:　　頭胸甲梭子形，甲面密生粗糙顆粒。額具四齒，中間二齒較小。前側緣含眼窩外齒共九齒，最未齒呈大棘向側方突出。螫足長大，長節前緣具三枚大刺，後緣末端剌一枚;腕節內、外側面各具刺一枚，掌節的縱走隆起線數，計背緣二條，內側面中央一條，外側面二條。兩指咬合緣列生不等大齒。雌雄體色花紋有明顯差異，雄性頭胸甲及螫足背面為暗紫色間雜淡色雲斑花紋，螫足指節及步足末三節呈寶藍色。雌性全身偏黃綠色，螫足指節及步足末三節呈棕褐色。俗名:花市仔、蠟仔。個體大，含肉量多，為熱帶地方的重要食用種。
  　　廣分布於印度一西太平洋海域。棲息於沿近海潮間帶至深50公尺左右的沙泥海底。出現於潮間帶的個體屬較小型的成蟹或幼蟹。