Fig. 2 in Fig. 1 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population.

Fig. 2. Diagnostic features of U. duvaucelii based on morphology described in the FAO identification guide for cephalopods (Carpenter and Niem 1998; Jereb and Roper 2010). The species is identified by its short and stout mantle with a rhombic and shortfin shape (A), short and sharp teeth on its tentacular club sucker ring (B), and small, broad, and plate-squared tip teeth of relatively equal size in arm III (C).