File:Bulletin (1971-) (20235066328).jpg

Title: Bulletin
Identifier: bulletin7073sout (find matches)
Year: 1971- (1970s)
Authors: Southern California Academy of Sciences
Subjects: Science; Natural history; Natural history
Publisher: Los Angeles, Calif. : The Academy
Contributing Library: New York Botanical Garden, LuEsther T. Mertz Library
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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1971 FOURTH ZOLA (Figure I IV, Size: CL 2.2 mm; TL 3.4 mm Duration: 7-8 days at I7"( General Characteristics and ('oloration Pleopod hutls are present on abdominal somites 2-5. Telson (Fig. 3 IV) is almost 3 limes as long as wide. Protopodites of the uropods are articulated wilh Ihe exopodites but not with the endopodites. There is an additional yellow chromatophore on the rudimentary cheliped and a red chromatophore just ahove the basipodite of maxilliped 3. Appendages The process representing the dorsal llagellum of the antennule (Fig. 4 IV) bears 3 aesthetes, 1 plumose seta, and 2 hairs. In addition, there is a longitudinal row of 4-5 subterminal aesthetes. The ventral llagellum has lost its terminal seta but has retained the plumose seta at its base. The endopodite of the antenna (Fig. 4 IV) is slightly wider than the antennal scale and extends beyond the tip of the antennal scale spine. Mandibles (Fig. 5 IV) are unchanged. No palp is present. Coxal endite of the maxillule (Fig. 5 IV) bears 2 additional nonplumose setae. The basal endite bears 6 heavy spines, each with secondary spinules. The endopodite is unchanged. Scaphognathite of the maxilla (Fig. 5 IV) bears 13 plumose setae. Setation of the endopodite and of the basal and coxal endites is unchanged. Exopodite of maxilliped I (Fig. 6 IV) bears 8 natatory setae; the endopodite and basipodite are unchanged. Maxilliped 2 (Fig. 7 IV) is unchanged. Exopodite of maxilliped 3 (Fig. 8 IV) bears 8 natatory setae. The endopodite bears 1 terminal plumose seta and 1 subterminally. GLAUCOTHOE(Figure 9, 10) Size: CL 1.4 mm; TL 3.4 mm General Characteristics and Coloration Periopods are functional. The 4 pairs of pleopods are well developed and used in locomotion. The rostrum is blunt. The telson (Fig. 10 a) is only slightly longer than its width and has only 8 terminal plumose setae. There are 5 pairs of small setae on the dorsal surface and 1 pair on the lateral margin. The protopodites of the uropods are articulated with both the endopodites and exopodites. The endopodites bear a single terminal seta. The exopodites are subequal, the left being slightly larger than the right. Each has 10 long plumose setae along the margin. In addition, there are 5-7 corneous granules and 4-5 smaller setae along the margin. THE I.AKVAI.oi PAGURUSSAMl I I is IV) ' I
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\ Figure H. Pagurui samuelh (Stimpson) rhird rn;>>. 11 lipccls ofzoeal stages MV. Scale O.j mm. Red chromatophores are prominent on Ihe eye- stalks, antennulcs. antennal basipodites, and on the anterolateral region of the carapace. I here are a great number of pale yellow chromatophores scattered over the anterior dorsal region of the carapace, the eycstalks. and the fifth periopod. Appendages The ventral flagcllum of the antennule (I 10 R) consists of 2 segments. The terminal segment bears 8 small setae; the proximal segment bears 2-3. The dorsal flagellum consists of 4 segments The most proximal is unarmed. The other segments each have 3-4 aesthetes. In addition, the terminal and the next most proximal segments bear several fine setae. Antenna (Fig. 10 Q) has a scale at its base which terminates in 2 nonplumose setae. There arc 10 flagellary segments, each of which bears a few short setae. Mandibles (Fig. 10 P) are cuplike and have a two segmented palp which terminates with four small hooks. Endopodite of the maxillule (Fig. 10 O) has lost its segmentation and has 1 seta. The basal endite bears 12 spines distally and 2 proximally. The coxal endite bears 10-14 setae. Maxilla (Fig. 10 N) bears 27 setae on the margin of the scaphognathite which has increased in pro- portion to the rest of the maxilla. The scaphogna- thite and endopodite are no longer articulated with the endites. Maxilliped 1 (Fig. 10 M) is radically changed. The basipodite is broad and appears bilobed. It has 15 setae on the distal lobe and 4 setae on the proximal lobe. The endopodite and exopodite are reduced and have only 3-4 short terminal setae. Exopodite of maxilliped 2 (Fig. 10 L) bears 5 long plumose setae. The endopodite consists of - segments, each with a few short setae. Exopodite of maxilliped 3 (Fig. 10 K> has 6

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