Tony Wu / Whitespotted bamboo shark (Chiloscyllium plagiosum) working his way into a crevice to approach female to mate. The males two claspers (the organs used for inseminating the female shark) are clearly vi...

Tony Wu / Flower urchin (Toxopneustes pileolus) hard interior shell or test, Kannoura, Toyo-cho, Kochi-ken, Shikoku, Japan.

Tony Wu / Whitespotted bamboo shark (Chiloscyllium plagiosum) male initiates the courtship process by biting and holding on to the female shark, Kannoura, Shikoku, Kochi-ken, Japan

Tony Wu / Whitespotted bamboo shark (Chiloscyllium plagiosum) empty egg sacs - the appearance of these empty eggs sacs seems to coincide with heightened male shark activity, with ensuing courtship and copulatio...

Tony Wu / Whitespotted bamboo shark (Chiloscyllium plagiosum) male initiates the courtship process by biting and holding on to the female shark, Kannoura, Shikoku, Kochi-ken, Japan

Tony Wu / Whitespotted bamboo sharks (Chiloscyllium plagiosum) pair mating with the male above, insertion of right clasper clearly visible. Kannoura, Shikoku, Kochi-ken, Japan

Tony Wu / Whitespotted bamboo sharks (Chiloscyllium plagiosum) pair mating with the male above, insertion of right clasper clearly visible. Kannoura, Shikoku, Kochi-ken, Japan

Tony Wu / Whitespotted bamboo shark (Chiloscyllium plagiosum) male biting the pectoral fin of a female shark during courtship, Kannoura, Shikoku, Kochi-ken, Japan