| প্রধান সুত্র | Compagno, L.J.V., 1984 |
| প্রণালী/ পন্থা | dioecism |
| নিষেক | internal (oviduct) |
| Mating type | |
| ডিম ছাড়ার ঘটন সংখ্যা | |
| Spawning aggregation | সূত্র |
| দলবদ্ধ ডিম ছাড়া | সূত্র |
| বংশবৃদ্ধিকর গিল্ড |
bearers internal live bearers |
| Parental Care | |
| জীবনচক্র এবং প্রজনন আচরণ বর্ণনা | Viviparous, placental (Ref. 50449), with 1 to 5 young per litter (Ref. 244); usually 2 or 3 pups after a gestation period of > 5 months (Ref.58048). Size at birth 52-60 cm TL (Ref. 9997). Distinct pairing with embrace (Ref. 205). During courtship and prior to copulation, the male bites the female on her right pectoral fin and uses his medially flexed right clasper in copulation (Ref. 49562, 51119). During copulation which lasts from 15 seconds to 4 minutes (Ref. 49562, 51119), both heads of the male and female are slammed in the substrate and their bodies undulate to keep their tails elevated (Ref. 51155). This mating behavior was observed in individuals bred in captivity. |
| পরিপক্কতার জন্য অনুসন্ধান করুন | Scirus |