Julia sp. 1
Order: SACOGLOSSA
Superfamily: OXYNOOIDEA
Family: Juliidae
DISTRIBUTION
Reported here from Hawaii, Midway Atoll, Raratonga and Magaia (Cook Islands), Indonesia.
PHOTO
Live animal from algae wash at Five Graves, Maui, Hawaiian Ids, July 31, 2001. Depth range: 1.5 - 6 m. Shell 1.6 mm in length. From sand sample, beach drift at Maalaea Bay, Maui, 1986-7. Photos: Cory Pittman
The shell is marked only with broad, radiating bands of lighter and darker green. In live animals, the body is green with scattered white flecks. In contrast to the other three Hawaiian species of Julia, the posterior margin of the shell is broadly rounded. The hinge is moderately large with a central knob that is arcuate and lacks a prominent terminal depression. There are a series of fine, ratchet-like ridges on its inner surface. [See separate messages for details of Hawaiian records and the shell]
Authorship detailsPittman, C., 2001 (October 12) Julia sp. 1 [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/julisp1
Related messages
Hawaiian Julia sp. 1
October 12, 2001
From: Cory Pittman
On Maui, shells of Julia sp. 1 are common in sand samples that include material from moderately exposed to exposed rocky habitats. All told, I've seen several thousand valves with a maximum shell length of 1.9 mm. I've also picked up 13 live animals in algae washes from depths of less than 1 m to 3 m. The color is highly consistent with the shell marked only with broad, radiating bands of lighter and darker green. In live animals, the body is green with scattered white flecks. In contrast to the other three Hawaiian species of Julia, the posterior margin of the shell is broadly rounded. The hinge is moderately large with a central knob that is arcuate and lacks a prominent terminal depression. There are a series of fine, ratchet-like ridges on its inner surface. [See separate message for detailed photos of shell]
I've found shells in sand samples (sent to me Pauline Fiene-Severns and Jerry Flora) from Indonesia, Midway Atoll, Raratonga and Magaia(Cook Islands).
The live shot is of an animal collected in an algae wash at Five Graves, Maui on July 31, 2001. The wash covered a depth range of 1.5 m to 6 m. The shell photos are of a closely matched (though lightly worn) pair 1.6 mm in length. They were in sand samples collected from beach drift at Maalaea Bay, Maui in 1986 and 1987.
Cory Pittman
cory@cet.com
Pittman, C., 2001 (Oct 12) Hawaiian Julia sp. 1. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5376Shell of Julia sp. 1
October 12, 2001
From: Cory Pittman
Here are detailed shell photos of Julia sp. 1 from Hawaii to accompany my earlier message.
On Maui, shells of Julia sp. 1 are common in sand samples that include material from moderately exposed to exposed rocky habitats. All told, I've seen several thousand valves with a maximum shell length of 1.9 mm. The color is highly consistent with the shell marked only with broad, radiating bands of lighter and darker green. In contrast to the other three species, the posterior margin of the shell is broadly rounded. The hinge is moderately large with a central knob that is arcuate and lacks a prominent terminal depression. There are a series of fine, ratchet-like ridges on its inner surface.
I've found shells in sand samples (sent to me Pauline Fiene-Severns and Jerry Flora) from Indonesia, Midway Atoll, Raratonga and Magaia(Cook Islands).
The shell photos are of a closely matched (though lightly worn) pair 1.6 mm in length. They were in sand samples collected from beach drift at Maalaea Bay, Maui in 1986 and 1987.
Cory Pittman
cory@cet.com
