Table 2 Graneledone macrotyla oocyte and egg characteristics
From: On gonadic maturation and reproductive strategy in deep-sea benthic octopus Graneledone macrotyla
Type of oocytes/eggs | S1 | S2 | S3 | S4 | S5 |
|---|---|---|---|---|---|
Length (mm) | 1.0–3.0 | 3.1–9.0 | 18.8–25.5 | 12.8–17.2 | 18.8–20.5 |
Width (mm) | – | 5.4–1.0 | 11.7–9.5 | 4.3–3.0 | 12.2–11.4 |
OW ± SD (mg) | – | – | 733.86 ± 71.84 (n:7) | 355.67 ± 120.5 (n:7) | 1,399 ± 139.31 (n:7) |
Outer case | Rigid, opaque | Rigid, opaque | Rigid, translucent | Rigid, translucent | Hard, opaque |
Longitudinal striae | No | No | Yes | Yes | No. Smooth surface |
Attached in bunch | Yes | Yes | Yes | Yes | No. Free within ovary |
Distal micropyle | Yes, narrow | Yes, narrow | Yes, narrow | Outer case widely open | No |
Peduncle | Long | Long | Long, 17–19 mm | Long | Short, 4–5 mm |
Fertilized | No | No | No | No | Yes |
Observations | Swollen AO | Swollen | Swollen | Flabby, empty AO | Hen’s egg shape. Color: beige |